Have you considered a program of recovery? I tried to quit on my own countless times with various plans. Take a class, go to the gym, move, don't move, take a vacation, don't take a vacation, read a self-help book, throw out all the booze, lock up all the booze, change my friends, etc, etc. The list went on. None of my efforts worked.
Finally I took it seriously enough to look for a program. I started with an outpatient program and then eventually AA. There are lots of things you can try, outpatient, inpatient, AA, non-AA. Take it from me: nothing really improved until I put the effort into a program.
Alcoholism was the most serious problem in my life, actually, the most serious problem I ever had in my entire life. Quitting was quite a job, and it wasn't easy. But when you are tackling the most serious, life threatening problem you have, well, it's going to take a little bit of work and commitment.