troubles aroud me

Nowadays ,I always felt very tired when I went to my class.I don't know what I am doing now ,especially when I have Intensive Reading class.

I felt regret not studing very hard .It's a great pity not to be attentive in the class ,because I know teachers have made great efforts preparing their class.But I can't help thinking other things .our Intensive Reading teacher put great pressure on us ,and I don't like her class .when I entered her class ,I couldn't brearthe normally.