I went to a psychiatrist recently and she diagnosed me with ADHD, Borderline Personality Disorder, and Bi-Polar II.
I'd get a second opinion. You might not be any of these things. You might just be an alcoholic.
And if that's the case, the good news is that there is a solution that has worked for many people who considered themselves hopeless. That solution, and what worked for me, is AA. Try 90 meetings in 90 days, get a sponsor and work the steps like you life depended on it (because it might). What have you got to lose?