Is there a way to suppress a persistent appetite?

Lately, as temperatures have gradually risen and warm days have continued, I've started to regain my appetite. Whenever I get stressed, I tend to relieve it by eating; I find myself filling my stomach without even noticing the fullness, and I find myself unconsciously reaching for food while thinking how delicious it looks.

As a result, I find myself gaining weight little by little day by day.

As a result, it seems like this phenomenon is occurring because my appetite keeps increasing.

Unlike hunger, is there a way to resist appetite, or is there another method to suppress it if it arises?