Really nice, try to keep a healthy diet, and dont get into "Oh, now I have lost so much, I can now eat more again." and keep on going your way.
I try to avoid empty calories, so pure refined fat or carbohydrates, like refined sugar, white noodles, rice and so on. So everything that has lots of calories, but nearly no useful nutrition, while I dont mind calories that provide useful nutrition, like whole grain bread or avocado fat. I try to avoid, chemical stuff like taste enhancer, glutamat, diet products, because of them causing hunger feelings. I just care, that it isnt to much. Additional I do some stretching and gymnastics at home, and when we dont have snow I like to bicylce a lot or go for walks and hiking.
I also allow myself to eat a bit more or heavier from now and then, but combine it with sports. So there is a real good butcher, where I buy marinated steaks once a month, but he lives about 1 hour of bicyle driving through mountain area away, so when I got there and back, I dont need to have bad thoughts about eating that steaks. XD