Let’s get one thing straight: common knowledge is often common garbage.
You know what I’m talking about. Those saccharine Instagram quotes telling you to “just think positive.” That one friend who insists you’d be fine if you just tried yoga. The well-meaning relative who asks why you can’t just focus harder. The internet therapist who swears you can manifest your way out of clinical depression.
Yeah, all of that? Mostly bullshit.
Here’s the uncomfortable truth nobody wants to admit: when it comes to mental health and neurodiversity, what “everyone knows” is frequently wrong, occasionally harmful, and almost always oversimplified to the point of uselessness. It’s not common knowledge, they’re common myths.
The Toxic Positivity Trap
Let’s start with the obvious offender: toxic positivity.
You’ve seen it everywhere. “Good vibes only!” “Choose happiness!” “Positive thoughts create positive outcomes!” It sounds nice. It looks pretty on a sunset background. And it’s about as helpful as telling someone with a broken leg to just walk it off.
Toxic positivity is the insidious idea that you should maintain a positive mindset no matter what’s actually happening in your life or your brain. It’s the pressure to slap a smile on your face when you’re drowning. It’s the subtle (or not-so-subtle) message that if you’re struggling, you’re simply not trying hard enough to be happy.
Here’s what toxic positivity actually does: it invalidates real emotions, creates shame around natural human responses to difficult situations, and makes you feel like a failure when positive thinking doesn’t magically cure your depression or ADHD. Only focusing on the positive when things are actually bad is similar to gaslighting yourself.
Spoiler alert: thinking happy thoughts doesn’t rebalance your neurotransmitters. If it did, we wouldn’t need psychiatrists, we’d just need motivational posters.
Let’s look at some more of those common myths.
Those “Helpful” Affirmations That Are Actually Harmful
Daily affirmations are supposed to be empowering, right? Stand in front of the mirror and tell yourself “I am enough” or “I am worthy of love” and watch your self-esteem soar.
Except when you have depression or anxiety, repeating statements you don’t believe, that your brain is literally, chemically incapable of believing in that moment, doesn’t inspire you. It highlights the massive gap between what you “should” feel and what you actually feel. It makes you feel like more of an imposter.
Some affirmations are worse than useless,they’re actively harmful. Take “I’m in control of my emotions.” Cool sentiment. Except if you have ADHD and emotional dysregulation is literally part of your neurological wiring, you’re just lying to yourself. You’re not failing at controlling your emotions; your brain is wired differently. Even if you’re wired “like everyone else”, it can be damaging to your mental health to continually reminding yourself of a lack in your life, even if it’s worded positively.
Or how about “I can do anything I set my mind to”? Great for a motivational speech. Terrible advice for someone with executive dysfunction who’s struggling to do basic tasks. It implies that your struggles are just a matter of insufficient willpower, which brings us to our next misconception.
You’re Not Lazy, Your Brain Is Just Different
Lazy is a word that needs to be removed from the discussion of neurodivergence and mental health entirely.
Can’t get started on that project? Lazy. Can’t finish what you started? Lazy. Struggling to make yourself do a simple task? Must be lazy.
That’s just plain wrong.
What looks like laziness is often:
Executive dysfunction — Your brain’s CEO is out to lunch, and no amount of willpower is going to schedule that meeting. ADHD brains struggle with initiation, planning, and follow-through not because of a character flaw but because of how they’re wired.
Decision fatigue — When you have ADHD or depression, your brain burns through decision-making capacity faster than a Ferrari burns through gas. By noon, you’re running on fumes, and choosing what to eat for lunch feels like solving a complex math equation. You’re not lazy; you’re exhausted from the constant mental load.
Depression — Clinical depression literally slows down your cognitive processing. It’s not metaphorical heaviness; it’s actual neurological sludge making everything harder. Getting out of bed isn’t a simple choice when your brain chemistry is actively working against you.
Autistic inertia — Many autistic people experience extreme difficulty starting or stopping activities. It’s not about motivation or laziness; it’s about how the autistic brain processes transitions and task initiation.
And these actually scientifically proven difficulties are considered the common myths, or just excuses!
But sure, keep calling yourself lazy. That’ll definitely help.
The Self-Blame Spiral Nobody Talks About
Let’s talk about the worst of the common myths, the most damaging misconception of all: the idea that your mental health struggles are fundamentally your fault.
You internalized the message that if you just tried harder, wanted it more, had better discipline, practiced more gratitude, or fixed your mindset, you’d be fine. So when you’re not fine, when you’re struggling with depression that won’t lift or ADHD that’s wreaking havoc on your life, you blame yourself.
- You blame yourself for not being positive enough.
- You blame yourself for not sticking with the meditation app.
- You blame yourself for starting seventeen different organizational systems and abandoning all of them.
- You blame yourself for buying one planner after another and never using them.
- You blame yourself for not remembering your medication.
- You blame yourself for not being able to just push through like everyone else seems to.
Here’s what you need to understand: mental health conditions and neurological differences aren’t moral failings. They’re not weaknesses. They’re not because you didn’t try hard enough or want it badly enough.
Depression is a medical condition affecting your brain chemistry. ADHD is a neurodevelopmental difference affecting executive function, attention regulation, and impulse control. Anxiety disorders involve actual changes in brain structure and function. These aren’t things you can simply overcome with enough grit and determination, any more than you can think your way out of diabetes or decide not to have poor vision.
Yes, there are treatments. Yes, there are strategies that can help. But your foundation has to be understanding that you’re not broken or lazy or weak, you’re dealing with real neurological differences that require real support and accommodation, not just better vibes.
The “Just Make a Decision” Myth
Speaking of decision fatigue, let’s address another misconception: that making decisions is basically the same for everyone and if you’re struggling with it, you’re just overthinking.
Nope.
When you have ADHD, decision-making isn’t just harder—it’s neurodivergently different. Your brain:
- Struggles to evaluate long-term consequences because time perception is wonky
- Gets overwhelmed by too many options (Hello, analysis paralysis.)
- Has trouble prioritizing because everything feels equally urgent or equally unimportant
- Burns through mental energy faster, leaving you depleted
Add depression to the mix? Now your brain is actively telling you that every option is pointless and nothing matters anyway.
So when someone cheerfully tells you to “just decide,” they’re revealing their complete ignorance of how your brain actually works. It’s like telling someone to “just see better” when they need glasses.
What Common Knowledge Gets Wrong About “Functioning”
Here’s a particularly insidious piece of common knowledge: you can tell how much someone is struggling by looking at their life from the outside.
High-functioning depression is real. High-masking autism is a thing. High-achieving ADHD exists. The person who seems to have it together at work might be falling apart the moment they get home. The person who appears successful might be drowning in executive dysfunction and anxiety, held together by sheer force of will and crippling perfectionism, and living in fear of the one little “hiccup” that will bring it all crashing down.
And on the flip side, someone who’s struggling visibly isn’t doing so because they’re not trying hard enough. They’re not less capable, or less motivated—they might just have fewer resources, less support, or a different presentation of their condition.
Common knowledge says: look at what someone accomplishes to understand their struggles. Reality says: you have no idea what it’s taking for someone to appear “functional.”
The Bottom Line Nobody Wants to Hear
Mental health and neurodiversity are complicated. They’re messy. They don’t fit into neat little boxes or respond reliably to one-size-fits-all solutions.
The common knowledge (common myths) that’s been shoved down your throat, about positive thinking, about trying harder, about “everyone struggles sometimes,” about just making better choices, is largely wrong. It’s well-intentioned, sure. It’s easier to swallow than the complex reality. But it’s still wrong.
And more than being wrong, it’s harmful:
- It creates shame
- It delays people from seeking real help.
- It makes people believe they should be able to do better through will power.
- It makes you feel liked a failure when the “obvious solutions” don’t work.
- It widens the gap between what you believe you’re supposed to be, and what you are now.
So maybe it’s time to stop listening to common knowledge and start listening to actual knowledge: the research, the lived experiences of neurodivergent and mentally ill people, and your own damn experience.
The Truth
Your depression isn’t a failure of gratitude. Your ADHD isn’t a failure of discipline. Your anxiety isn’t a failure of perspective, and they’re NOT excuses, they ARE reasons. Reasons that can be acknowledged and outcomes improved, but unlikely to be completely “fixed.” They’re real conditions affecting real brains, and they deserve real understanding and real support, not another inspirational quote about choosing joy.
Ready to stop believing the myths and start understanding your actual brain? It’s time to find support that actually gets it—whether that’s a therapist who specializes in ADHD and depression, a psychiatrist who understands medication management, or a community of people who’ve been where you are. You deserve better than common knowledge. You deserve actual help.
Since people are so diverse, and the quality of help varies, it’s difficult to recommend who can help. However, join our supportive and encouraging community while you’re figuring out what you need.