Scrub,
It sounds like you have a lot of issues that are bothering you, a lot.
Can you somehow hook up with a therapist who deals with dual diagnosis (addiction and mental illness)? The cutting and paranoia are not usual accompaniments to addiction. A little passing paranoia (worrying that people are talking about how you look or act when you are drinking/using) might be, but yours seems to go a bit beyond that.
I know several people with dual diagnoses who are getting effective help with their addictions and their mental illnesses. It isn't easy, but it can be done. They are living happy lives now.
Please look into it.