Ehh I hate when people post asking for advice about dieting but actually don't list their weight along with their body fat...ahh well here we go anyways...
So what your basically saying is you wanna stop lifting weights so you can use that time to do cardio? From reading your post thats what it seems that your suggesting. Lemme tell ya..if I had to choose between the two I'd stop drinking before I'd stop lifting. If indeed the drinking is the only thing that standing in your way then I guess ya got to choose. Do I want to drink or do I wanna have the physique I work so hard for day in and day out.
Have you ever thought about just lowering your overall calorie intake like 200-300 cals a day if your trying to get cut? Do you keep a food log? Do you know approximately how many calories your intaking daily? How much cardio a week do you do now?
The thing is is that you say "Its not anything bad like pizza." I mean is 1000 calories in pizza any worse than 1000 calories in Bud Light? The thing is that no one is gonna tell ya that ya got to stop drinking. hell I go out atleast once a week and get a lil sauced but I use it as part of my cheat ritual. On the other hand going out 3 times a week and getting plastered really isn't eating clean consistently.
The bottom line is that if you stop weight training and start doing cardio instead for any substantial amount of time you?re going to lose muscle. Especially if your dieting to lose that fat.