Dear 13 year old, School isn't that hard right now so don't stress too much. There will be so much more to stress about when you're in high school and later on in life, so save it for then. Of course, still focus, do your homework, and get good grades. Balance your social life and school work. Have lots of fun and do stuff as often as you can while you aren't piled with homework. Also, remember that you are not too cool for your family. They are the only people who have been there for you since day one and will continue to be for the rest of your life. It's definitely exciting to be in middle school with new freedoms and friends, but don't ditch everything else. Keep your old friends, but make new ones at the same time. You can never have too many friends because you never know who will stick with you. Enjoy being a 13 year old because you are only 13 once, so make the most of it :)