Just don’t go into it straight out of a fast. Aka don’t do a 72 hour fast and then crush down a horrible meal with beers. Eat some normal stuff the day before
Biggest thing is turn things away as much as you can, definitely fast outside of all that as much as possible (if you said “I’m not hungry” the morning after, nobody questions it. Nobody thinks you’re hardcore fasting because sometimes it happens to them too after a crazy night). If you consume 2000, 2500 calories, etc. it’s not the end of the world. It’s higher than maintenance but not by a ton. But if you pack yourself full with 5000 calories a day, that’ll be bad. You can fit a lot within that 2500 calories
And then you need to get right back into it immediately when you get home afterward
Do not fall into the “well I already had a terrible weekend… maybe I’ll just have a few more days and then get back into it”. Next thing you know it’s 2 weeks later and you weigh 290+ again, wasting literally all the time you just spent fasting prior.
I was in the same boat yesterday at an nfl playoff party. I caved a little, but kept it under control. Just be conscious of what you’re eating & re-start afterwards. It’s a long process..you can live a little here & there.