Some people find it helpful to have busy hands when they feel stressed or anxious. You could try and make yourself a stress ball and see if busy hands help relax your mind!
How to make a stress ball: you can use a balloon, stretch it out, fill it up with flour using a funnel. You could cut the top off a bottle to use as a funnel too. Then remove as much air as possible, tying the balloon tightly at the top. Now you’ve got your own stress ball!