Well, I think the first thing you guys should do is move out of Evanston, Wyoming into a city like New York, which has a low suicide rate.
Okay, that was a bit crude. Sorry.
To tell you the truth, pretty much the same exact thing happened to my sister. I know pretty well what's going on with her and you and your family.
My family has a history of mental illness. Bipolar, depression, you name it. I personally have mild recurring depression and ADD.
Of course, there's not much we at Smashboards can do besides just give you moral support. I doubt any of us are trained psychologists, and even if we were, it wouldn't be ethical to give advice, since we don't really know you or your sister.
I guess I'll tell you something that might make you feel better: My sister, who attempted suicide and ran away and took drugs, is probably now the nicest, most responsible and caring person I know. She recently had a small relapse, but now she's back on top of everything, and she's doing great.
Things can get better. I hope they will.
I guess, Pustulio, that I would be the ideal person to talk to about this, since I've been through all of it before (or, more accurately, my sister has been through it). Since this kind of thing can get pretty sensitive, I suggest you PM with anything you want to talk about.