Proteins are good, yes, but please don't be afraid of the fats! Fat gets a bad rap, and it's undeserved. It gets lumped in with sugar, and this is totally misguided. If you're wanting to feel full (satisfied) but not be putting on weight (or you want to lose weight) then cut out the carbs, grains especially, and wheat most of all - and eat plenty of fats. Fats will make you feel full - pleasantly full, not bloated.
That's a terribly simplified version, and I really suggest learning more about it if you want to look and feel great - and without making yourself feel hungry and miserable!