How can I fix my credit score fast?

I am in like $2500 worth of debt right now, I’m late on about 5 credit cards, and I have around 9 in total, I’m presently training for a job and will not begin to earn income for another month, my credit has gone down drastically, I’d like to know when I’m able to start making payments what can I do to fix my credit the fastest? -I would also like to add that 4 of my cards are maxed out.