Welcome to SR. Glad you found us and know that you have plenty of support here and much information/experience to read through.
Using booze to self-medicate and the length of time and amount of alcohol you have been drinking pretty much leads one to believe you have a problem.
I know it is tough and I am proud that you have made it through the critical first 24 hours. Over the next days and weeks your withdrawals will lesson and you will begin to feel better.
You definitely need support and a program of recovery to stay sober. I did counseling which is quite helpful in understanding my underlying issues and helping me understand alcoholism.
I would suggest consulting your doctor as I kept mine in the loop. There are various treatments available for anxiety if that is something you had prior to drinking.
All the best and keep posting. By reading and through posting....I have gained so much and is an essential part of my recovery.