I'm going to Mexico next month on the 22 how fast would I be able to get a passport if it's my first time and underage? What should I bring?

I got mine from them in two weeks, but you can pay to get it faster. You can fill out the pass port form there or do it yourself and bring it in. You'll need a valid ID, birth certificate that will be sent to the passport agency, passport photo, if you're underage something from your parents to prove guardianship and then the fee of the passport by check. The service at passport & visa solutions is amazing and they helped me out of a very uncommon circumstance. Good luck

Can I get a visa there also?

You will need a government issued ID. But, you can get it as fast as 4 days possibly.

I don't have a state ID do you think a school ID would work?