Newsround's Adam has been speaking to some experts to find out how you can stamp out stress when it comes to Sats and other exams.
Here are some of their top tips for staying cool during test season.
1. Stay calm
Getting worried is natural but don't let your worries get out of control.
Try writing down what scares you on a piece of paper, then scrunch up the page and chuck it away!
Always try to picture happy things - NOT scary stuff.
2. Take deep breaths
If you feel very tense, then you are probably not breathing properly. Try taking 10 big, deep breaths and you will feel more relaxed.
3. Have a break
It is important to take lots of breaks when you are doing a lot of studying. If you have a snack, then try to make it a healthy one. Sleep is important too - so no late nights.
4. Try to relax
When you are talking to your friends about exams, don't let them wind you up... And don't wind them up, either!
Remember you can always talk to an adult about how your revising is going and how you are feeling.
5. Don't panic
Tests might seem like the most important thing in the world, but it's not the end of the world if you don't get full marks.