You've gotten a lot of good advice already. I'll add a little.
Game carts can be great, especially in open woods or
where you have a trail. Get the solid tires that do not need air.

Also remember that the only thing that needs to be perfect
all the time is your attention to safety. Otherwise, relax
and have fun, that's what it's really all about---you will
learn as you go.

Good Luck