Dear 10-year old Alex,
There are many things I think you should know about your future. First at foremost, do not spend your time worrying about things that won't matter. It may seem like a huge deal to you now, but don't let it affect you. Keep your head up, stay strong, and learn from your mistakes. Also, spend more time with your sister. As many fights as the two of you get in, I can promise that you two will be close forever. Remember that all siblings fight, and you guys love each other. Never forget how much your parents love you either. If at any time in the future they seem unfair or mean, they are doing it for your own good. Learn to trust their judgment, and you will be better off in the long run.
Another piece of advice I have for you is to stick with dancing. You will later regret quitting, because its what you truly love. If you have a passion for something, follow it and don;t give up. You should learn to challenge yourself more so that you can become better at it. It will also teach you to never give up on anything in life. Always try your hardest, and give everything 100%. Do all of the things you have ever wanted to do, because time flies by quickly and before you know it you may have lost the chance to do something exciting. Seize opportunities as they come to you, and do not be afraid to take risks.
You may not understand what all of this means just yet, but I can assure you one day you will understand exactly where I am coming from.
Yours Truly,
Alex