I always feel depressed. Im never really happy, I am 22yrs old and in college, I find it hard to concentrate on school because of it. I feel like I have no purpose and am not good at anything. The only thing that keeps me going is my son and hope that things will get better. I don;t know why I feel this way because I have an ok life. I have no one to talk to and I don't know what to do. Should I get some type of medication from my doc? Does meds work?