Hi there, You sound like you may be from England?
I am 23 also and I go to AA meetings. You will be made to feel very welcome there. You do not need to reach end-stage alcoholism ie-24/7 untill you address your alcoholism.
I am an alcoholic and I was a blackout binge-drinker. Sounds like booze has been causing you a lot of unpredictable problems like it was causing me. The only way for me to make sure that I never do something I deeply regret in a blackout again is by not drinking "just for today!" I can just about cope with that and I have 103 days sober...
Acceptance of being an alcoholic is the crucial first step...