My depression is getting in the way of my daily life.

Between the stupid people in my class, eight deaths within the last seven months, and my cousin I was really close with getting hauled off because my aunt and uncle were stupid enough to have a meth lab, I just can't take this. I want to just run away and live in the woods because I'm sick of this. I can't take it. I seriously need to just live so far away from people I can't even talk on the phone with them. I've had legit three hour venting sessions daily with my friend and nothing is working. What should I do?