If you were to be homeless in your area for a bit how easy or hard could it be to survive out there?

I has homeless for a while and I went to a church for help but was asked to leave because of my tourette's. The same thing happened at a few shelters. So I tired to take my own life. 20 pain pills and a bottle of vodka. Thank goodness my buddy found me and got me to the ER in time.