Is this going to matter when I go to high school next year?

First off don't feel stupid for asking many people probably have the same anxious feeling but I can ure you that changing schools doesn't mean everyone will laugh at you. Being academic is a talent already and maybe you should practice tennis more that way you will have a sport that you do feel comfortable in and be able to enjoy your self ad boost your self esteem. I hope this made you feel alot better have fun in your new school