hi Alexiel..welcome to the forum. I have been a member here myself for quite some time, but i just recently started posting on this particular forum. I have been SI-ing since i was about 7 or 8. (Im 18 now) though, for now i am pretty much recovered from it--havn't done it in about 4 months.
I also have schizophrenia and depression (but depression has been under control for over a year now) i think you'll find lots of wonderful, supportive people here.

-Becka

p.s--so sorry you are going through so much pain.