Hey there! First off, keep your head up!
I think I can somewhat relate. My parents were emotionally unavailable and downright abusive growing up, and college was the first time I could come out of my little shell without risking punishment.
Driving used to be a nightmare for me (I still don't like it, but I can tolerate it). I used to have to check my rear-view mirror about every three seconds because I was terrified someone was pissed off at me. And I used to shake like crazy when I got pulled over (cop thought I was freezing and told me to get back inside my car).
Alcohol is a mixed bag too: sometimes it makes the hole I'm sinking to smaller and sometimes larger.
Labels are just that--labels, but I can tell you about my experience. I was diagnosed with GAD, but with the help of a good counselor and (eventually) psychiatrist, I'm much better now.
But it wasn't too long ago that I cut myself too, so I can feel your pain.
Anyways, keep that chip up and post back!