Get a digital scale, weigh every morning after toilet. I find there is a very quick and variable response to the previous days food, which can be quite motivating. Seeing it up or down half a kilo each day is very noticeable, and informative about what works and what doesn't.
Eat less dense calories, try to move around a little bit, all there is to it. My general rule is: -2 small meals = weight loss -1 regular/big + 1 small = maintain -2 big = weight gain
Once you stop trying to bloat yourself all the time, it starts to feel nuts how frequently you did