I haven't read the whole post, and I don't know you other than from what I've read of your posts, so I don't have all the information regarding this subject.
I don't know if you have or not, but I think you should probably stop using drugs because if you're going through a hard time in your life, using drugs might make it worse. I know some people here might say that using psychedelics is safe and a great way of helping you through mentally difficult times, but if you're feeling suicidal I think the last thing you want to be doing is escaping reality by usings psychs.
To what Restin and Fork said, I don't think reading philiosophical books is really going to help him at all, because it sounds, from what I've read, that the last thing Ahuax wants is to sit down and read. I may be wrong, but there we go.
I agree with what God said about waking up and actively taking responsability. I think that you can only get better if you actively work towards that goal, because I get the impression, again I may be wrong, that you are just sitting there waiting for someone to come and make you better, and that if nobody does then you'll just take the shortest route out by killing yourself.
Only you know what your problems are and how to solve them, and I don't think you'll find a solution by looking towards psychiatrists or philosophical books.
But in the end, its up to you to help yourself, and none of us are going to be able to say something that magically makes you better.
I'm finding it hard to formulate what I want to say. Life
is sacred and cutting short would be a waste. If everyone just gave up when things got rough then what sort of world would we live in? If and when you get through this period, I think you'll look back and think "yeah, that was quite a horrible time for me, but I got through it, and I'm better because of it." It sounds cliched but thats just what I think.
Good luck

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@ Restin - surely if your an athiest, you wont believe in heaven? Doesn't make much sense to me