Everyone deals with stress once or twice (normally more) in their lifetime, here are a few of my strategies of how to deal with stress.
I can mostly deal with stress is some situations. For example, homework. I handle this problem by planning ahead, I plan what homework I should do on specific days. There are other ways to handle homework.

One of them is trying to be organized, actually you should you organized ALL THE TIME. Sometimes, I personally leave my math textbook at my bin. Which leaves me to worry about it until it’s the next day, which is when the homework is due. Another small tip that I use is putting your planner inside of your binder, so you wouldn’t forget about it that often. You might notice that there are three holes on the side of your planner, which is where you can place your planner, It may take up a lot of space (and it’s heavy) but it’s at least better than forgetting to bring your binder or planner.

If you’re REALLY stressed about something else besides homework then maybe you should take a break and calm down. Normally if I get mad or sad, I try cheering myself up by doing something I like. If I’m nervous, I doodle on my paper little patterns. Or I just make a full drawing of a subject I particularly enjoy. You could also take a little walk outside and clear things up. Everyone has their own strategy!