I went a few months sober some time ago, then relapsed a bunch every 2-3 weeks. I've more or less concluded it's down to being bored. Hard-earned friday night, I feel like I need to 'join in' on all the other people doing something special that friday evening. Except it can be ordering pizza, eating out or going for a swim. I instead immediately relate it to something social despite never having benefited from being drunk on a friday night. If anything, I get talkative and forget to drink at parties.
Instead I should see it as a chance to get up early the next day. I feel gamed out saturday morning and it's like 9pm. It feels great. I clean, shop, wash and all manner of shit, but it's not as immediately cool as gaming drunk so I discard it. Maybe I should start biking again but for real. Actually demand of myself 40-50km every saturday then microdose 20-25km after work now and then. I don't even care for speed or distance, it's mostly being out there, feeling good in my soul that I can say "Yeah I bike". Yet it's easier to just drink and throw up for half a day.
Sounds like biking. "When does my ass stop hurting?" it doesn't. "When do I get faster?", you basically don't, you just get more consistent in speed and performance. You relate biking to driving a car, going faster the more confident you get, but ultimately it's no different than running. It's a treadmill of pain and you just get better at dealing with it. Biking has helped me a lot in dealing with being uncomfortable, ie. going to bed slightly hungry cause I fast for long periods of time.