Correcting sentences

1. It's a huge hassle to arrive at the airport without your passport.

2. If you do your homework now, you won't have the hassle of catching up on it before the deadline.

3. She regarded her good grades on the final exams as a good omen for getting pocket money.

4. Working hard acted as a stimulus to her promotion.

5. Pocket money acted as a catalyst for her studying hard.

Could you help me correct these sentences? Thank you very much.