Can consuming fiber help me lose belly fat?

Hi guys! I am choosing fiber supplements, or the powder because I don’t really get enough of it in the meals my family makes. I do eat vegetables every night for dinner, but I don’t know if it’s a good amount. Usually we’d have a full plate of food, but a small amount of vegetables like green beans on the side. I am almost out of high school, so as I go off to college I will have a new diet plan for myself. I have really bad belly fat, I think a majority of it is due to my digestive system. The biggest my stomach has been was when I was at the mall, and ate the food there, once I drank enough water and flushed all the toxins out, my stomach was perfectly fine, and back to normal. I have horrible bloating, but also fat is frequently stored in my stomach, everywhere else is fine. I want to take care of that ASAP. It’s not my parents fault though, I’m almost an adult and it’s my responsibility to get the nutrients I need on my own. There are foods that to trigger my digestive system, that I still eat, like cheese, beans, spicy foods, greasy foods, and hot sauce. It causes me to have horrible cramps, my stomach feels hard, and the size of my stomach increases. Sorry for this long explanation, I just want to give enough information to determine if increasing my fiber intake will help me with this issue.