Should I be worried if I haven't finished my common app yet?

I have everything finished, I'm just waiting on my stupid school counselor to tell me my class size and GPA.

I go to a small Christian school and I'm one of the very few people from the graduating class even applying to college so my counselor is in no rush. She said hopefully by the end of September but God only knows if she'll even have it by then. I've gone round and round with her but she says there is no way around it and she'll "have it done before the deadline". None of the schools I'm applying to are rolling admission, but I know people say you should still submit apps asap. Will this have any effect on whether I'm admitted or not?