You were in a fight with a villain to save Aizawa, you were left in the hospital, seriously injured, you were undergoing surgery, you were on the stretcher breathing slowly

They didn't give you weeks of recovery, only one, when you returned to UA it was a lot of stress, they didn't help you recover, Aizawa made you do a lot of physical effort, which made you tired three times as much and you didn't recover

You were in a calm class, copying the work, only that Bakugo started bothering you, telling you about things, weak, useless, and more.

Bakugo "What are you going to do huh? You can't use your quirk because you're useless"