I am thin, and always have been(even skinny at pre-puberty), but it’s my metabolism. I am not saying I don’t like my shape, but it’s not the body that makes you confident. Let me tell you, I feel awful wearing a bikini, I’ll just swim with a t-shirt and basketball shorts over my bikini. When I look at myself in the mirror, I first see my eyes which I believe are the best thing about me, but then I see after a few seconds how deep and broken they feel. Then I see all my flaws I wish I could change.
What I am trying to say is, being thin is not the key to confidence. No matter what you look like, there will always be something you hate about yourself, it is up to you to decide if it pushes you down or if you tell yourself that it’s enough and you are clearly worth it, though it might take time. Don’t let the imaage of beauty society shows you define your happiness.