For breakfast; Greek yogurt is very good.High in protein. and creamy.
I like Chobani among other brands.
You could try having a boiled egg, or two.You can buy a bag of Eggland's Best already boiled if you tend to be short on time.I have a boiled egg, and a Wasa cracker for breakfast sometimes.
I would just avoid having to much Carbs if that makes you feel like you're having cravings, or a bit of a crash later.Some people eat a bowl of cereal, or packaged sugary oatmeal and feel the effects later.
If you're tired of starting over,stop quitting.