April Fourteenth: Why did they even come to class?

I was sitting in the classroom, it was so noisy because all the kids (Yes, I'm calling these college students kids, because they're all somehow acting like kids) were talking and chatting pretty loudly. And the teacher was kind of screaming so that people could hear her. I sort of felt bad for her.

I really didn't want to be there, I was in a pretty bad mood. I don't even know what these people were doing there. They didn't look like they are trying to learn anything there. They were all just chatting, playing on their phones or even sleeping.

Then the teacher wanted us to answer the question on the textbook. I didn't even know what the question was  about, can't say I answered it, but I still wrote something anyway. The teacher said she didn't even know what I was writing about, then she erased my answer and wrote on her own. I didn't even try to argue or explain. I felt too tired, I just wanted to sit there and do nothing. I really did feel drowning.

April Fourteenth: Why did they even come to class?

I was sitting in the classroom, it was so noisy because all the kids (Yes, I'm calling these college students kids, because they all somehow acting like them one) are talking and chatting pretty loudly. And the teacher was kind of screaming so that people could hear her. (The teacher had to almost scream to be heard over them) I sort of felt bad for her.

I really didn't want to be there, (but) I was in a pretty bad mood. I don't even know what these (those)  people were doing here (there). They didn't look like they are (were)  trying to learn something here. They were all just chatting, playing on their phone(s) or even sleeping.

Then the teacher wanted us to answer the question on(in) the textbook. I didn't even know what the question is(was) all about, not to say answering it, but I still wrote something anyway. The teacher said she didn't even know what I was writing about, then she erased my answer and wrote on her own. I didn't even try to argue or explain. I felt too tired, I just wanted to sit there and do nothing. I really did feel (like I was) drowning.

Nice job, just a few simple errors. In the middle paragraph you wrote it in present tense like you were there right now, so I changed the verbs to past tense to fit with the other paragraphs. Your writing sounds very natural, good job!