Visit someplace that offers therapy, get signed up, be honest about your problems on the intake sheet, be honest about the problems on your intake sheet, do not diagnose yourself on the intake sheet, you are not in a movie, be honest about your problems on the intake sheet.
If you are in crisis, they should have a hotline. Your intake interview or initial therapist should be able to determine if you need to speak with someone who can talk drugs, but be honest and listen.