To add to this: meal habits are important. Try eating 20% slower and more mindfully. Note how full you feel at any given moment, and stop when you're 80% full.
I had (have) the same problem. I have realized it is rooted in me eating in the kitchen, the second the dish is ready.
If I serve it in a plate, sit down on a table and eat it as I consume some media, then it helps slow down the eating process. Having a glass of water with me also helps. Similarly, eating lunch with coworkers is usually helpful to slowing down the eating process too.
One tip is to not wait until you're ravenous to start eating. Another is to try and savour each bite, noting the flavours, letting the fat melt in your mouth, etc. And finally, counting the number of times you chew each bite is supposed to be effective, if not tedious.
This is only really accurate if you are fairly sedentary, and are trying to lose weight. If you are active, chances are you are not getting enough calories.
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Can you please elaborate on different methods you've used in the past (current) to help slow down your eating habits, please.