I used to struggle majorly with weight. Went on a pretty strict 20gm keto cut in about 2016 and dropped form 200lbs to 155lbs. Since then I've just settled around 160-170lbs. Whenever I notice I'm getting a bit heavy I just go back on Keto for 6 weeks or so and I'll be back down. Keto for me has a real appetite suppressing effect, so I'll usually only eat dinner and nothing else except a couple of coffees through the day. This all sounds very difficult to someone who hasn't done it, but I was shocked how easy it became after a week or two. You cut a lot of bloat and water weight in the first few weeks, so it's really rewarding looking at the scales day after day. Once you've done it and realise how easy it is, I find there's a lot less anxiety around weight.
There is a lot of debate ongoing in the literature about increased lipid markers and long term cardiovascular health in the context of a lchf (keto) diet.