I’m sorry you had a tough time when you were younger. The most important statement in this thread is this one:
what’s impressive is the kid who endured something and still managed rigor and the grades/scores, including through the crisis. Then, any single freshman problem (say that blasted C grade in some core,) can be put into perspective.
The students in the example above are your competition, and even those types of kids won’t all get in. You had a hard time, and you eventually came through it and have succeeded. You can keep succeeding without going to a top 50 college. If you like, ask a counselor to add info to your letter of rec about your mental health issues, but I’m not sure I would do that. Mental health issues can make some admissions officers wary. Maybe it shouldn’t be that way, but it’s true.
I am not going to encourage you to apply to a bunch of schools you have no chance of getting into. It’s expensive. Writing good essays takes a LOT of time, time that is better spent doing well in classes or just having fun with friends. It’s also demoralizing, for some people, to get rejected repeatedly. Maybe apply to a couple, if they are a great fit for you, and if you don’t mind spending the cash. Other than that, I suggest you focus on a good school that will enable you to make the most of any opportunities that arise. That doesn’t have to be a top 50 school.