Why can a girl mobilize the whole class, and you can't even win over several people of the same sex?

No matter what happened before, but now, if what you said is true, then this is her problem. In addition, have you ever thought about what to do if you choose to repeat the grade before this happens?

It's cruel, but you must look directly at the problem. Escaping won't solve the problem at all! You must meet the challenge. Time is precious. You can't sacrifice a year for a little thing. No matter from which aspect, it is quite not worth the loss.

Therefore, it is strongly recommended that you form a small group, which can help you share a lot of pressure and help you concentrate on your studies again.