I used to wonder that too. The more sober time I have the more I realize I didn't really do anything fun.I just drank . Everything I did revolved round drinking and it was very tying.
Now I'm free I can do whatever I want whenever I want. I realize I had no fun as my life was tied to drinking -what time to start, did I have enough drink at home, would I get served before it closed ,leaving events early so I could drink etc etc. No fun at all.
I have a freedom now that I never knew existed