Is this a good plan for losing weight?

Ok so I want to lose my stomach fat to get a flat stomach before school starts. My plan is when I wake up I do simple exercises at my house like crunches, situps, pushups, etc. In the morning for about 30 minutes. Then I eat healthy breakfast's and lunch's. In the afternoon I'll ride my bike about a mile through my neighborhood. I eat dinner around 6 and then around 7 go on a short jog. I drink about 8 glasses of water a day and don't eat many snacks. If I do I'll usually have fruit or something. I just started this plan about a week ago and I feel great but do you think this is a good plan and if not what should I change? Thanks:) oh btw I just turned 14 if that helps:)