Everyone is perfect. When I say this I don't mean that you're a plastic Barbie. NO! You don't need to be Barbie to be perfect. Why? Because she is not real, you are real, a real human being who is so perfect. Yes everyone have flaws that what make them so perfect because of our flaws. Your body, your appearance is perfect. don't let what anyone say affect you.
Let's face it's so easy to just say that anyone that dislike your appearance is just jealous. Sometime it is the case, but sometime it isn't. When it isn't the case, they are not jealous but they have a different perception of beautiful. What is beautiful to you may not be beautiful to them. So don't ever, EVER, let anyone who say you are ugly. Know that you are beautiful so so so beautiful. All you need is YOU, to look in the mirror and say you are beautiful. It is allow to be a bit cocky over your appearance, it's allow (but not too much).
It is not easy to have confident, to think you are the most ugly human being in the world. After all we live in a society where you have to be stick thin to even be consider attractive.
I will admit that I am one of those "lucky" to so many that have a good body without needing to work out, and probably never have anyone to insult me. No, that is not the case. Behind every girl, tall, short, thin, curvy, there is always going to be someone telling them that they are fat. YES even us thin girl. It seem that not matter how skinny a girl is there will always, ALWAYS going to be someone telling you that you are too fat, too chubby. DON'T LISTEN TO THEM! (Excuse my language) BUT FUCK THEM! You are perfect, perfectly thin, perfectly curvy, you are just perfect. FREAKING PERFECT, just, FREAKING PERFECT.