Beer, I have stopped before, usually 6 months or so, when I wanted to lose weight. I find my Strava road bike times to be a little better when I don't drink, but not by much. I usually drink maybe 2 or 3 a week. When I spend a lot of time in my garage doing woodworking projects I may drink a little more. When riding my MTB if I had beer and Pizza the night before I can feel it during the first hour... I can do 30 miles of riding just fine, whether I drink or am not drinking, just feel low on energy for the first hour. I don't drink a lot of hard liquor, unless I have friends over. At 57 years old, I don't enjoy more than a couple at a time, just makes me sleepy.
My Shop fridge.