Weight Loss Tips!

Does anyone have any tips to lose weight, maybe like 15lbs? Mostly just my tummy fat, by like the end of May? Is that possible? I’ve seen people lose 10lbs in a week or 2, so I think it’s possible but I’m not sure what I should do. I know I can’t just “get rid of only my tummy” but I don’t mind if I lose weight in other areas, just want it to be a bit flatter since it’s starting to look like a pregnant belly/a beer belly. Thanks guys!