Really helps to eat your Protein first, I know others have said this before me but truly fills you up, also eat until you think your full then, stop put the fork down wait,if still feel hungry then one or two more bites slowly, if not then stop knowing that you have reached the limit.
I hope I don't sound like "know it all" it's just I have had the misfortune of being over filled and wouldn't wish this on anybody, so all us banders have the same challenge of finding out what the hell is FULL to us ,my Dr says that overweight people have no idea what it takes (food wise) to survive or what the body not the mind needs to feed it . I think he's right eh?
Good luck and hang in there, blessings to you , Jan P