I'm a year and almost a month sober.
Drank for most of my life, I'm 46, and basically had enough with living the way I was living. Couldn't take it any longer, so I quit. I found that the mental hurdles were much greater then the physical ones.
If I could give any advice or what I've learned, it would be two things:
1. It's work. You have to put in the time to get your mind and body healed. It's not just not drinking that will keep you sober.
2. Patience. I thought that if I quit everything would be great straight away. Like I said its work. "If you walk 5 miles into the woods you have to walk five miles out".