I need some advice from the trees community.

I have been unemployed for a while now and I have been fighting some pretty bad depression coupled with chronic headaches, insomnia, and no desire to eat. I had a friend recommend that I partake of some trees, I have no experience of any kind with trees and need this communities advice. Should I start self medicating to pull my self out of this dark place I am in? and if so how should I go about it?