Down, first of all, welcome. You could have written my biography. But, now, I'm 53, which means, for a long time, I was a "weekend Warrior!" But then the need-it-every-day-just-to-maintain crap set in. Oh, it wasn't just beer, it was anything I could get. Beer, wine, vodka, scotch, tequila, etc. etc. Then the drugs. Not much I didn't try (except heroin)
The disease can and will grab you and take you down, and it won't let go. I would advise to see your doctor. Let him know what's going on. Detox can be rough, I needed help with meds to go thru mine. 41 days now. And I don't even look back. No need to.
SR is a great resource, if you don't like the AA meetings in your area, (like I don't) then try an NA meeting. You need a support group. Best of luck. It wont be easy, but, it is well worth the ride!