>>9011first of all OP, don't be an idiot. don't an hero. try to just make the best of it all and learn how to survive in nature or something. learn some good skills and do good with your life.
that being said, the moment you tell a therapist or psychiatrist or any medical professional or authority figure or next closest friend, douche bag, family member in general that you are planning something, you can picture yourself in the room with padded walls in an instant because that is what they do. they give you a false sense of security and trust and then betray you instantly.
so #1 don't an hero. don't hurt yourself or others.
#2 don't trust assholes
#3 do good with your life.