I’ve lost around 6.5 stone through a calorie deficit (about 1400kcal a day).
I also started running (only after I had already lost about 5.5) which helps maintaining now.
Like someone else said, I have seen it as a lifestyle change. When I really craved something I had it, just a smaller amount. Takeaways (not often) were things like chicken shish with rice - or even fish & chips, but then removed the batter from the fish and only had half the chips.
I made sure I had plenty of variety - lots of protein, but also carbs, fats etc.
For special occasions I would eat “normally” and enjoy it and get back to it the next day, it’s just not realistic (for me) to try and stick to something for over a year and not have “normal” days. Yes, I put on some weight over Christmas. But I then got back to it afterwards.
Treat setbacks as part of it - no “damn, messed up one day, doesn’t matter now…” but “ok, I had a bad day, but now I’m back on track and nothing terrible happens”.
Now I have two motivators to keep it off (other than generally feeling much better). I have a hiatus hernia and, weighing less, I can eat a lot of things again that were no-goes before. I had food come straight back up at my worst times which now rarely happens - and I can live without medication most of the time.
And my running. I’m running half marathons and am doing my next marathon next year, I have never done any sport before - and, of course, I’m not saying larger people cannot run, but it is a lot easier when slimmer! And maybe there’s a third, I think I have just started hitting peri, so want to be in the best position for this period of life.
Due to the issues I already had with reflux (and I’m absolutely reliant on the pill working as it should for other medical reasons), both of which can be impacted by the WL medication, this was and is a no-no for me personally.