You’ve got everything you need, it’s not a bad job if you take your time.
Biggest thing is making sure the flange is in good shape and sitting about level with the floor. If it’s too low or busted, that’s where problems start.
I usually stick with a wax ring. It’s simple and it works. The rubber ones are fine too, just a little more forgiving if you have to lift the toilet back up and reset it.
When you set it, try to drop it straight down onto the bolts don’t wiggle it around too much or you’ll mess up the seal. Then press down (I just sit on it) to compress the wax.
Tighten the bolts slowly, going back and forth side to side. Don’t overdo it people crack the base that way more often than you’d think. If it rocks at all, shim it before tightening everything down.
Hook up the water, turn it on, flush a few times and check around the base and supply line. If it’s dry, you’re good.
It’s one of those jobs that feels intimidating but is actually pretty straightforward once you’re into it.