Try taking a break from it all. To relieve stress, you could take a buuble bath or just spend some time alone listening to music or just taking a nap. As for your different activities, try making a schedule that gives you time for each thing that you need to do. If you have soccer, make time before practice to finish your homework, or maybe take it with you and work during water breaks. You also may want to explain to your friends that it hurts when they tease you, and that you work hard to get where you are. Follow these tips and the pressure will all end.