Howdy and welcome! I was a weekend warrior myself and I quit. I actually use AA, it helps me to see where I could end up if I continued on the path I was on. Not saying you have to do that, but I do.
As for filling up your weekend, it is time to start looking at the weekend for what it really should be. Rest. Exercise, watch TV and go to the movies, date nights with the wife, library, shopping, fixing things around the house, yard work, etc. Regret never learning to play bass? Go for it! You will find tons of ways to occupy the time and you will feel so much better and so will your wife.
