How can an early teen lose extra belly fat quickly?

Look, I'm a 14 year old guy who weighs about 135 and I know I shouldn't be worrying about this stuff, but for years I've been trying to work off fat and not much has worked. I took up martial arts around October 2013, and last summer added some extra things to increase my workout. I've lost quite a bit, but I still have some extra belly/thigh/hip that won't go away. I'm leaving to go on vacation in about 5 weeks, and I want to get as much as possible off in that time. I'm still doing a regular workout of about 8/9 hours a week of Jiu-Jitsu and Kickboxing. I eat pretty decently. Again, I know I shouldn't be worrying about all of this but I really need some help. Any workouts or diets I could implement into my schedule for fast weight loss? I'm really willing to do virtually anything. Any help is appreciated.