Dear "dance", you are a 13-year old among the 17- year olds? Well, I'm a 17 year old girl among 11-14 year olds
Trust me, I'm not in a better situation than you are. I felt uncomfortable at first, because, for one thing, I'm older than everyone in the class, and I do weigh more than I should at my height. However, after reading this forum, I realized that it doesn't matter what I look like or how much I weigh. I love dancing, dancing is my life, and I don't know what I would do without it.
I started dancing when I was 13 (which is REALLY late), so I'm not even thinking about a professional career in dancing, but I can simply dance, right? I dance for myself. I don't look at the other girls in my class, I simply look at myself, trying hard to correct every mistake and give it my best.
I admit that I'm not a natural dancer. I have to work hard to perfect my turns and my arabesque, but it is so worth it!!! Absolutely nothing in this world can compare to getting up on pointe. Nothing!! Although it requires a lot of strength, pain, blisters, and patience(!!), it is the best feeling I have ever experienced.
So honey, dance for your soul! Don't let anyone steal your dreams!
And the most important thing is, stop comparing yourself to others!!! You are the way God has created you. You are your own human being, not the 17-year old "super good" dancer standing next to you by the barre.
I hope I helped you just a little