Hi Sartre,
If you're impatient to see change then you will need to do this (first and foremost) through nutrition, it's the only way the weight will come off. Some exercise is great for accelerating weight loss, other for retaining muscle but changing your nutrition is what gets rid of fat, and as trusylver said, you can't lose belly fat, you can just lose fat. Having said that it can be done quickly and safely if you dive into good nutrition and strength training so don't be disheartened, give it a shot! Good luck buddy