How to get a flat stomach?

Right well I'm 14 and do you think it is possible that I can get a flat stomach in 2 months? I'm going to be realistic here I know it won't go completely flat I know because I've been on a diet for about 5 or 6 months now and lost alot of weight because I admit I was overweight well a lot really for my age so Ive been excerising an eating healthy now I'm normle weight but the thing is I do have abit of fat on my belly like I Sadi it won't go completely flat I dont mind a lil bit of podge haha :P so any tips on what excercises to do? No harsh comments :)