I have the same problem.
You cant spot reduce, but do cadio, eat a bit healthier, and you'll notice some changes in about 2-3weeks, dont lose heart at first, it will be worth it.
Ive been just eating, meats and salads, doesnt matter what kind of meat you have, beef, minced, chicken, lamb. with some salad and you're body loses the fat.
Do your exercises like sit-ups, core work, and exercises ppl do for groin rehab, because it strenghtens the muscles around too.