If this is not the case, then I personally have this analysis:
1, you have no hope in learning, and the teacher doesn't like you very much.
2. You went to play with your classmates, but you were accidentally discovered. Hurt you cruelly. This situation makes you fear and worry.
You wanted to be free, so you died in your dream. However, you want to make the living feel guilty, so you have the pain and headlines of self-blame.
Real life makes your dreams come out of depression, which is bizarre but traceable.
Don't be afraid, don't worry, this dream is not a sign. These are the dream fans I uncovered for you in a scientific way. I hope you can relax and find the motivation of life again.
Wish you all the best!