Stop and get off of the roller coaster

So what is the deal! I have been going to school for 3 months and I can't stop thinking about even though I am done with the semester. I swear it feel a little anxious. I worry and think about things I should be doing, even though I have no homework or books to read. Its like I just CAN'T sit still. My mind is a buzz about about care plans, patients and medical terminology. When I do sit for a moment, it just doesn't feel right. I am paranoid that I missing something, something that I forgot to do like oh crap, was I supposed to watch a technique video or whatnot. It is super annoying.