Read Easyway and i have some questions

I'm looking to stop drinking, i read the book and generally the idea seems to try to condition your mind to eliminate cravings by seeing alcohol what it is, a nasty poision that has no benefits what so ever.

The problem i have is that i do genuinely enjoy a bit of alcohol when im with friends, i cant just lie to myself and say that alcohol has no benefits when im having a couple of drinks with friends. That being said, drinking too much when im with friends isnt so great either.

How do i get past this aspect with my drinking? i dont want to spend my life craving saturday night so i can drink with my friends. does this mean i can never drink again?

just for some background, i drink about 300 mls of whiskey each night, been doing this for about 5 years and its starting to effect me badly, i have GAD and kinda feel like im slowly losing my shit. also have history with other addictions: codiene and xanax (kicked that nasty one though )