U r probably your own worst critic. I used to be skinny when I was your age up until the age to about 20. Until 16 I did a lot of exercise but stopped after that as didn't realise the importance of exercise. I do a lot of exercise now but am still pretty big but I don't mind that now as the exercise I do such as swimming an playing football really gives me a rush an I feel better about the way I look as starting to see slow changes. I'd highly recommend a team sport not to change your shape although this may be an effect from this but to help you feel stronger in yourself an about yourself. Hoping you feel happier with your body image soon
