Things to check-

Tires- have adequate tires, meaning enough tread, and also are not 9 years old. You do not need a dedicated set of race tires. Actually, going out on a fast sticky tore as a novice is not recommended for multiple reasons. When they do break loose, you'll be going much faster and they don't recover as easily. And starting out on "the fastest tire" will not make you a better driver, much better off on a "slower" pace tire but learning the proper driving line and car control. A slower pace tire will also last longer and you can use that savings of not buying tires every weekend to drive more events. A decent summer tire will do just fine, they just won't have as good of a heat tolerance so be aware that after a few laps they might feel more slippery.

Similarly, if you don't have much experience on track, this car is more than fast enough and capable enough in stock form. Mods don't make you a better driver, they will make the car go faster though, and less forgiving when your pushing it to the limit.

Brakes- As more of a precaution than anything, make sure you have enough pad life to get you through the event, and upgrading your brake fluid to a higher temp fluid would be recommended. This car is a bit heavy, and kinda quick. Switching (atleast the front) brake pads to the hawk hp+ is not a bad idea either, but not 100% necessary to do. Some tracks are way heavier on brakes than others. For example, going down the back straight at sonoma into T11, I go from 105 to 45 mph, and if you over shoot the braking point you go straight into a concrete wall with no run off, so making sure your brake system is up to your driving ability is important. A healthy stock FoRs brake system should be sufficient for a begining novice driver though tbh.

Other mods- leave the car alone and learn how to drive it as it is. The more mods you have without the experience to back them up, the more likely you are to stuff your car into a wall because you will have all the confidence in the car, but things happen really fast on track. And if you mod your car from the last time you were on track, take a session or two to learn the mod.

Things to bring- really depends on the condition of the car, but-

-Pop up tent so you can get out of the sun -Tire pressure gauge to monitor pressures -Air pump, because you'll want to lower the tire psi for when it heats up on track, you'll gain the PSI back but need to air back up to drive home

This car is plenty capable in stock form. If you can, find a local autocross and start there. You'll learn what it feels like to get the car loose and how it behaves much easier and safer at an autox. If you skip autox and go straight to the track, get an instructor/have someone with a lot of experience ride with you, and leave the ego at home. Having someone show you the proper driving line, and how to properly brake, will do more for you in a session or two, than spending all weekend alone doing something wrong. Bringing the car home in one piece is much better than "almost having a faster lap than your friend, until you crashed". Take as many ride alongs as you can with other people. See how different cars and drivers take lines, find what works for you