I have a lot of psychopathic traits these days...what happened to me, and how can I go back to normal?

I read your statement a few times and have been unable to pick out any psychopathic traits. You do however sound very depressed. Try to get out in the sun as much as possible, its a great [natural] anti depressant. Daily vitamins help curve sudden anger and mood swings. Take the family dog[s] on daily walks. You needn't hide or wear a hoody your body language will signal when you are approachable.