Do bicycles, whereby you touch your right elbow to your left knee and your left elbow to your right knee, in rapid succession. About 100 each day. Then do leg lifts while on parallel bars, you bring your legs up so you look like an "L." If these are too hard, then bring your knees up to your chest, or as high as possible. Do 100, or 33, 33, and 34 reps to equal 100. Then do twists, by grabbing a broom stick, put it on your shoulder, and then with arms outstretched and your hands grabbing the furthest ends of each side of broomstick twist rapidly and try about 100 times for each side, or 200 twists altogether. Try and get the stick to turn to a 90 degree angle to your hips with each twist. Sit or bend down to isolate your hips and keep them from turning with the twists. Then do frog kicks, by sitting at the edge of a bench, your legs elevated and straight out in front of you. Your body is held up by placing your hands behind you gripping each side of the bench, and your body is at a 45 degree angle. You then bring your legs towards you in a folded manner and bring them back down unfolding them into a straight out position. Do about 100. Start all these a few at a time, and then gradually increase them until you can do about 100 for each different exercise. There are a multitude of ab exercises, but do these frequently, and later on if you hit a plateau, or want still more definition to your abs, then do the variations of other ab exercises. Don't eat when you go to sleep, the food you do eat during the day should be lean, and low in calories. Cut out carbs, in other words, flour based foods, like bread, pasta, tortillas, etc., Burn off more calories then you consume. Keep a food diary. Do lots of cardio, about four miles a day or more, to really bring out those abs. Good luck.