I've been eating late-night snacks all day while starving in a fish tank, and my belly fat is no joke. Are there any safe diet supplements?

Did you all enjoy your dinner? ㅎㅎ I have a small fish tank at home where I raise pretty shrimp as a hobby. My small pleasure is to come home from work, turn off the lights in the living room, leave the fish tank light on, and just watch them splash around. But the problem is that if I just sit still and watch, my mouth gets bored ㅋㅋ While I'm at it, I eat snacks and open a can of beer, and before I knew it, I had a serious tube attached to my lower stomach and sides ㅠㅠ

With spring approaching, I bought a thin knit online a few days ago, but it made my stomach stick out so much that I couldn't wear it outside. I was so shocked that I started dieting. For the past few days, I've been munching on a famous protein bar instead of dinner, but instead of feeling full, my jaw hurts and it tastes strangely artificially sweet, so after eating it all, I crave spicy ramen soup even more, which is having the opposite effect. ㅋㅋ I think there's a clear limit to how much I can control my appetite with just my own willpower, so I'm going to try to get some help. ㅠㅠ

So I'm looking into diet supplements that help cut carbs or break down body fat, but there are so many ads for them that I'm afraid to buy one hastily. Does anyone know of a good diet supplement that doesn't have side effects like stomach aches or heart palpitations, helps me go to the bathroom comfortably, and reduces body heaviness? I'm also curious about whether it's better to take it before or after meals and how to take it!! If you have any recommendations for safe diet supplements that definitely act as a booster when combined with exercise, please let me know. This time, I want to lose all my belly fat without a three-day resolution. I'll be waiting for your real reviews!!