A random moment of anger/hilarity during a bad bout of depression a few years ago: I tried calling around to a few psychiatrists in the area to get an appointment for depression. After waiting several days without hearing anything, I called one again. "Hello?" "Uh, yeah, I called and left a message a few days ago about seeing someone about depression." "Oh. We aren't accepting new patients." "Um. Okay, can you recommend anyone who is?" She sounded shocked that anyone would ever ask such a question, "no."
So, it has been my experience that mental health care could care less about you unless they're already cashing your checks.
Anyway, on the subject of suicide, you only get one go around on this ride. If you're seriously contemplating suicide, go see your regular doctor about it. There are great drugs out there. Yes, they can have side effects, but let's be rational here: a lack of boners, for example, is well worth it to find value in life again. If you kill yourself, everyone in your family will be devastated, your friends will miss you more than you think, and, to be perfectly honest, you still owe society for educating you and putting up with the ridiculous stuff you did as a teenager. ;-)