Take a step back
Try going for a walk or giving yourself a certain amount of time to do something mindless to bring your stress level down before you go back to whatever you were doing.
Make a list
Try listing the things that need to be done in order of difficulty or importance. Having tasks categorized can make them seem more manageable.
Sleep on it
It is really easy to make mistakes and stress about something when you’re exhausted. It is a lot easier to accomplish things when you are well rested.
Find a time to work
The more you put off your work the longer you have to stress over it. Try setting a time each day to do homework. This helps you keep on top of things and you no longer have to worry about when something is going to get done.
Clean up your work area
Tidy up the space you’re working in. Your surroundings often affect your mind and it can be easier to concentrate and work in a clean and organized space