Dear Mary,
I am sorry to hear that you failed the exams and have lost interest in schoolwork.
In my opinion, grades are not the only purpose of learning, so don’t feel too bad. At this moment, you should take it easy and find ways to reduce your anxiety. Why not go on an outing with your friends or find time to listen to your favorite music? If you can talk to the teachers that you respect most, they may give you some practical advice that help you to explore a new learning method which is better and more suitable for you.
Anyway, I hope you can rebuild your self-confidence soon!
Yours truly
Li Hua