How can I act confident when I dont actually feel confident inside?

Okay so I go to this Ballroom dance studio, and I take a teens class. im not usually self-confident because of my birthmark, ...

latley I been feeling so ugly, yea I get im pretty by adults but when it comes to people around my age I feel like the ugly d...

theirs been a lot going on with me and my boyfriend for the best few days, I havent felt beautiful inside or outside. I can't...

im ugly well my fiends say im so cute but I dont feel that way I feel like im the ugliest person in the world I feel like if ...

So yes, I am nervous at school sometimes because I dont wear a bra to school, because I am worried what people might think. i...

I'm going to Circle 6 Ranch tomorrow and the next day and we are gonna play paintball and other stuff, and we have to wear s...

I am a fifteen,, and I am very confused, I have a lot but im still not happy, I wish that things would be the same and its ...

My sister is really curvy and pale, and I don't know how to cheer her up about summer, and help her feel better about going t...

a lot of people say im perfect and have a beautiful body.. but I dont think so. I feel like im gaining to much weight. I've...

how can I gain high self-esteem and look an feel confident at my school???