Chiming in to say that there is a *spectrum* when it comes to mental illness. While depictions of people who are curled up, in a fetal position on their couch might seem ''tired'' they are also true of certain people at certain times. I have struggled with depression intermittently for most of my life (I have bipolar disorder) and while I am often high-functioning, I am just as often laid up on my couch, unable to move, unable to think and unable to do (esp prior to medicating). Sometimes, I am so unable to function -- whether manic or depressed -- that I have to be hospitalised. Sometimes I am unable to function as a side-effect of my medication and have to be hospitalised.
Additionally, even when I am ''highly-functioning'' I tend to use a number of crutches to ''get through'' (alcohol, drugs, avoiding people I love etc etc that look ''invisible'' or ''normal'' but are actually highly self-destructive) -- but that is just my experience of mental illness. Some people are far more self-contained.
Ditto people who are mentally ill for a *reason*. Yes, some mental illness is genetic (mine certainly is!), but a lot of mental illness *is* caused by external factors. Even my highs and lows, which are bound to be set off at some point, are often 'triggered' by an external event. This isn't some problematic stance authors are taking, imo. Mental illness might be chemically based, but situational factors will exacerbate or bring on symptoms.
People in survival situations are likely to exhibit the signs of mental illness (and imo, it's *good* that there are these depictions -- because depression is so often seen as a wealthy, white person's disease, just because these are the people who have the ability to advocate the most re: mental health. The mental illness of POC and those from a lower socioeconomic background, which often manifests differently, can become ''invisible'' as a result).
As someone who is mentally ill and has been exposed to a lot of mental illness irl, these are my pet peeves with YA novels:
- isolated mentally ill teen in perfectly happy family. Mental illness has heritable aspects, so it's highly likely that someone else in the family has been through this before
- teen with single, uncomplex diagnosis eg depression is kind of likely to be comorbid with anxiety and vice versa. There's a link between anorexia and borderline that's emergent in recent literature.
- lack of medication. I have very, very rarely read about a teen taking antidepressants or mood stabilizers etc and the attendant anxiety that comes with that. There's a lot of 'talk therapy' but tbh, for someone with the kind of mental illness I have (and for someone with difficult to treat clinical depression), no amount of therapy is going to fix things entirely.
- overly focused on the internal. There are lots of angsty passages in YA about teens feeling sad, experiencing suicidal ideation etc, but in the books I've read there is less of a focus on the external -- the way that mental illness can change (for the worse) your relationships with your family, friends, sig others etc (esp PTSD, here). Like I said, some people may be self-contained and mentally ill, but ime most are not, even if they are ''high-functioning''.
- lack of stress about how to *pay* for all the treatment that is often required. Hospital stays and trips to the psychiatrist and psychologist cost mad $$$ and unless a teen is from a wealthy family, this is going to be a serious impediment to them getting better (personal experience, I went totally broke paying for my mental health care when I was in college and I *am* from a well-to-do family -- who thankfully bailed me out).