Am I ok?

I am a 15 year old female. 5ft 7″ 130 lbs I have a little bit of PTSD because of an even that happened to me recently. A few months ago I did a stupid thing I smoked this drug

Do I have depression?

Lately I’ve been all of a sudden depressed, hurt myself, Feeling worthless, Also feeling like a failure at life and feeling guilty, Lack of interest in things, I don’t eat as much and for an unknown reason my chests been