As a future soldier, how does drill work? Would I actually be doing anything? Would I get paid?

You do get paid. You can look up the reserves or guard pay chart. Basically, a full Saturday and Sunday would count as 4 MUTA's (dont ask what that stands for, or look it up.)
As far as training, it really depends on your unit. You SHOULD do training that improves your skills as a Soldier and in your MOS every drill. Does it happen? Not all the time. But if you are committed to serving your country in the military in the reserves or guard, go for it. I was in the reserves for 15 years and now I'm active duty.

One note: make sure it's an MOS that you want. If the recruiter says they don't have it, wait. Or pick something that is acceptable. Don't pick something because that's "all that is available." You will regret it. Better to delay 3-6 months for an MOS you want then to be stuck with something for a few years you don't.

it varies on what unit you will be with, also on your MOS. Yes, you will get paid (amount varies on the MUTA for that month).

Drill often involves PT, briefings and MOS duties. Enlisted in reserves or Guard either eat at DFAC or at local contracted restaurant (e.g. Golden Corral, etc.) during the day for meals.

At drill, part-time personnel like you either physically or digitally sign in for accountability. After the drill weekend finishes, full time personnel process the roster for direct deposit into bank accounts a few weeks later.