I also had never had any major problems with work, finances or legal while I was drinking. I did know I had a problem just like you did and I did finally quit
A little thing I realized after I quit in January of this year was I was not as high functioning as I always fooled myself into thinking I was. Quitting opened my eyes to just how much I was missing out on. Yes I never got arrested or has any major problems while drinking but it numbed my life into a sad state as if just going through the motions.
Yes I slipped up for a day two weeks ago but that I admit was a mistake and made me realize more than ever that was a path not ever worth taking.
I want to live life not just numb it into a cycle of motions.