Credit Debt Management - Clueless, need help!

Alright, hey r/Frugal.

Here's the situation. I've got a maxed out credit card at $9,000. Every payment I make to it ends up being spent again throughout the month. I can no longer ignore this. I am currently working on obtaining a higher wage job so that I'm not forced into this situation constantly.

The question at hand is this, though:

I manage rent for my apartment. My roommates gives me their rent check and then I pay the landlord. I do this through a checking account. Would it be beneficial or harmful to me to take all the rent money, use it as a payment on my credit card, and then pay rent with my credit card? (Landlord uses an online payment portal) Rent total is $2,500.

What kind of affect would this have on my credit score?

Really any sort of advice helps in this situation, so thanks in advance!