You won't be able to recover physically to the state you were in before drinking. The reason is, you've gotten older (well duh!).
If you've been drinking for many years it might be hard to tell if physical changes are the result of drinking, or just aging. Regardless, the sooner you quit, the better your physical health can get. Myself, I now work out several times a week (I'm 50+) and feel like I'm in pretty decent shape.
Would I be in better shape if I hadn't drank so much? Probably, but who really knows. If I hadn't been drunk at home some night years ago, I might instead have gotten hitten by a bus while jogging.