I'm 16, and for years I've been very depressed. It got to it's worst last year. I go through periods of time lasting a few months where I'm horrifically depressed and I cut my arms and wrists. Last year I tried to commit suicide all the time over several months but never managed it. I just didn't care about anyone or anything. I'm not bad at the moment but I'm scared another depression will come on because they happen at random. Please help me because I don't know what to do.