I have found for me eating more and not less worked great. It really depends on what you are eating. I eat 5-6 small meals a day, but they are high fiber and protein meals. Check out the abs diet, you can get it on amazon for cheap. I lost 30 pounds on this diet before I even started working out, just changing the way I ate, what I ate and how often did more for me in a couple months than starving myself did for years. The good thing about the Abs Diet is that it is healthy because you are not starving yourself but instead giving your body what it needs to sustain itself. When you eat less you tend to gain weight because you are sending a message to your body that it is not going to get fed, so when you eat you eat a lot and normally tend to eat things that are high in fat and calories because your body needs to store those calories and fat for the fasts you are making it go through. Portions are important, try eating on smaller plates because you will trick your mind into thinking you are eating a larger portion when really you are giving it what is recomended because even eating a lot of healthy food will keep weight on. Eat smaller frequent healthy meals that are quality foods that will feed your body and keep you full and satisfied. When you eat more frequently it boosts your metabolism because your body realizes that you are feeding it reguraly and it will work faster to break the food down. If you are eating a lot of healthy foods (multi-grains and high fiber) you body will work harder to break it down which will burn more calories in just the breaking down process as opposed to the little it has to do to break down refined foods. I also recomend YOU: On a Diet as it is written by doctors, follows the same principles as the Abs Diet and says it is an owners manual for waist management.
(I gained 5 pounds the first week on the Abs Diet but lost it all the next week and then some. I think the reason for the initial gain was because my body was not used to getting fed and was storing what I put in my body.)
Hope this helped, and it is never too young to get on a sound fitness and health regimen. Though you might want to hold off on some of the stuff like whey protein and such until you are a little older, but not sure not a doctor just a health freak