New students

I don't know if I should be really worried about (the new college in the English class) I don't know what you're trying to say here but this doesn't make sense to me. This past week, I went to my weekly English class and I noticed three new students in the class. I felt (was) very happy because there were more of us and so we could learn a lot.

When the class started, soon, I knew that this new student had a good level of English. Firstly, I considered that this new student was good for me a good new for me, because I could learn a lot and I could copy their pronunciation, or their good accent. But, when I arrived to my home, I thought about this class again and I compared my low English level to theirs.

I don't know if I can reach their same level, or if I must give up this learning. What happens if I can't learn at the same speed?

Yo entiendo pero creo que como dijiste, es algo bueno porque puede ayudarte con tu ingles =) No te preocupes...Muy bien!
 
I hope I made a mistake, and this bad moments and (negative) thinking passes.

New students

I don't know if I should really worried about the new college in the English class. The past week, I went to my weekly English class and I checked out three new students in this class. I felt very happy because there were more of us and so we could learn a lot better.

When the class started, soon, I soon knew this new student had a good level of English. Firstly, I considered that this new student was good for me, because I could learn a lot and I could copy their pronunciation, or their good accent. But, when I arrived back at my home, I remembered this class and I compared my low level of English to theirs.

I don't know if I can achieve the same level and wondered whether I should give up this learning. What happens if I can't learn at the same speed?

I hope I was making a mistake, and this bad moment and (negative) thinking passes.

Muy bien.  No renuncias!