Srsly I was slipping down this path too a number of years ago. Essentially I wanted to just forget the day, and to get home from my (seemingly) horrible job and get fuzzy so I felt better, then continue on to drunkenness where I could just hit the bed and pass the hell out. One day I just said - screw it. I don't need to drink. Its as easy as that. I didn't stop at the liquor or beer store, I just went home, watched TV and managed to fall asleep with no help whatsoever. I realized that day that I could stop drinking whenever I wanted. A few years later I started drinking again really for no reason - and I lashed out physically at my GF (didn't beat her ass or anything, I think I threw something at her). I went straight to an AA meeting that next morning and I met some "Real Alcoholics". That sobered me up (pun intended). I realized that these people really did have a much much bigger problems than my piddly little bullshit (Oh I like to drink too much and get angry). These folks lost jobs, killed people drunk driving, alienated family, got arrested, started prostituting to pay for it, sold stuff, stole stuff, etc. It was a real eye opener and I haven't had any "problem" since then. I can have a beer with american football, or a wine at dinner and not chug it like a frat boy. I can go to the bar and still manage to not get over the legal limit while my wife gets hammered (and later hammer her cuz I don't have whiskydick).
If they have something across the pond thats similar to or the same as AA - I suggest you go visit at least one meeting. It doesn't mean you have to start getting chips, but definitely don't go drunk, go right after work or in the morning if you have to, and just for an hour - listen to these people. You'll figure out before too long whether its for you or not, or maybe even just get a slap in the face taht you need to get the fucking bottle out of your mouthhole.