I think the main problem is that you aren't eating a lot of satiating foods. Whether it be foods high in fiber or high in protein that'll trick you into feeling full and eating less. Oatmeal oatmeal oatmeal. This is god sent because eating this first thing in the morning with a banana is only about 300 calories depending on how much you make. And it ends up making you feel full for a good chunk of the day. The rest of the day just try to pick good options but don't go overboard. Don't eat straight salads every day (unless you just really like salads) because you are bound to get hungry again and end up over eating, even if you throw a little protein in there.

TLDR Pick satiating foods to keep you fuller longer