Er, so, um, this is a bit of an unusual contribution to this thread I think, since it covers a more specific topic commonly botched by newbie writers: Suicidal characters. Naturally this is going under a spoilercut due to sensitive content.
Spoiler:- Suicide Talk:
OK, so as someone who's dealt a lot with suicidal idealizations and has attempted to take his own life more than once, and has channeled his feelings and experiences with it all through his writing as a form of recovery and catharsis, I felt I should give my fellow writers some advice on how to tackle suicidal characters because they're commonly mishandled.
First off, never use this kind of thing for cheap drama. Really, nothing should be used for cheap drama, not even good ol' character death or character cripplement, but for a character contemplating or worse actually taking their own life it must be handled especially carefully and in an appropriate manner. (Rape is in a similar, probably even worse boat.)
Second, well, I should start with the unfortunately common notion that people who commit suicide are weak-willed or idiotic. That is decidedly not true; the whole offing yourself intentionally thing is a lot harder than it sounds in multiple respects and takes a lot of mediation - and in the end, it's still pretty scary. Like, trying to OD myself - I don't know how long I stared at that bowl of pills thinking over wheither the hell it was going to work or not and that there was no going back if it did. Aaand there are the complications of trying to throw myself into traffic or goad cops into shooting me that are significantly harder to put into words.
But what I can put coherently into words is I still damn well wanted death. You generally have to really, really be beaten psychologically into a pulp to ever get to the point where you'd ever want to literally throw your own life away, but once you hit that point it sounds like something merciful. You don't care about the goddamn metaphysical roulette of whether or not you'll end up on a sunny cloud or in a fiery pit or as absolutely nothing at all or anything else, you just want release from the horrible psychological suffering you're feeling every goddamn day.
Why? Because you feel like you're worthless. Your life means nothing, you're a detriment to others in your life, everything that weighs on your psyche is dragging you down and you just want to semi-literally self-destruct.
As you can guess, it's awful. Really awful. A pit you need a lot of genuine support to drag yourself out of. I managed to get it, even when I veered closest to actually doing it with that OD attempt. My friends from another community saved my life there. A lot of people aren't as lucky.
So please, keep all that in mind when writing a suicidal character - and seek the advice of other survivors like me. One particular tool I like is using some allegory for suicide to keep things more subdued - rather than actual death, the character seeks a death-like state to free them from their suffering - I once interpreted a suicidal character once subsumed by their dark side as feeling such.
And that's all. Hopefully that was helpful, if decidedly heavy.