Please correct my sentences.(4)

1 - I have afforded alot since I have been here but thats enough.

2 - I agree with you, but don't push it too much.

3 - Don't ask me to forgive you, I have warned you about that many times.

4 - The school has allowed the students to bring their pets to the dormitory.

5 - This show is really amusing me, but I have an important thing early tomorrow. I have to go to bed now.

Please correct my sentences,
or let me know if there is better suggestion to express any meaning in these lines.
But please distinguish between the correction and the better suggestion.

Thanks.