As Cate said, you really are at the right age to make positive, lasting impact to your health and quality of life. I've always been on the heavier side, and I know at 16 losing that weight can seem like such a daunting task, especially when you feel like you have so little control over your life, your schedule, your food, etc.
I was around your age when I first consciously made the decision to try and lose weight. At the time, I had plans to join the military after high school, and I knew I needed to drop at least 15-20 pounds just to make the cut, and then I also needed to get fit in preparation for boot camp. I talked to my parents, I told my friends. I let everyone know my plans because I needed their support, and my parents started filling the fridge with more fruits/veggies, my friends would go on runs or to the gym with me, and I really started to lose the weight. Unfortunately, due to some health issues and a terrible knee injury, I never made it to the military and the weight sorta crept back up. That aside, what I think is most important for you at your age is establishing a support system.
This forum is an amazing place to start, and it's one of the friendliest online communities I've ever come across. But we can only do so much as far as encouragement and advice goes. People in your daily life are the ones who are really going to keep you accountable, and who can give you the proper sort of support as you take this journey. That said, we're all still here regardless, and we're all cheering you on!
Best of luck with everything!
