Try calming your muscles & your mind using calming music, meditation, coloring or reading instead of video games. It's also helpful to create a bedtime routine. Give yourself enough time to wind down and get ready to sleep.
You can also try thinking about 5-10 things that make you happy.
Try this calming music, or simply sing a song that helps you feel calm.
You can also try squeezing, then relaxing your muscles on your own.
Ask someone you love to read a bedtime story to you.
Exercise in the morning or afternoon, but not right before bedtime.
Still have trouble falling asleep? Talk to your parents or a doctor about other things you can try.