There are some classes that I am trying to keep up with.
For what reason are you keeping up with them?
Because otherwise they will expel me.
Sometimes it's not easy to keep up, but it's great that you're trying your best. As long as you study hard then you should be okay.
Yeah. I'm fine
We all struggle from time to time with work and school, but your approach to keeping on top of things is commendable. Focusing and working hard should prevent you from being expelled and you'll feel a sense of accomplishment.