How to lose weight being a vegetarian and a teen

Congrats on becoming a vegetarian! If you want to find good substitutes for protein, try eating nuts, eggs, soy, there are some protein drinks you can get and don't forget about tofu. Tofu sounds intimidating at first but when prepared well it can taste great. Also, you could start out with low impact aerobics. Try walking at first and when you're comfortable with that, step it up a notch. Muscle work is also good because your metabolism needs to run at a higher pace to feed your muscles when they're in good shape. Try squatting ten or twenty times a day, that works out your largest muscles, and trust me, you'll feel it!