Dear Jessica,
I also am very tired, because I also passed the exams. And now I am very happy, but usually want to sleep. I think, that you need to have a rest, because it relieves fatigue.
Also we have some holidays in Russia. On this parties my family and I always go shopping or walking in the park
And what about friends? My friends and I always go to the cinema or to the shops... We like spending time together. This always makes me relax.
I think, that you can find a hobby for you. For example I like drawing and singing.
Or you can begin going to a sport centre.