Have to agree. The advice from everyone is coming from the right place, but there is a difference between performance mods (completely unnecessary for a novice) and safety mods.
OEM brake pads are designed for street use. Driving on a track is magnitudes more demanding on brakes, even starting out, so at the very minimum it was a great idea to grab some Hawk HP+s. Brake fluid is a good idea too. The stock fluid would probably be fine, but there's no harm in adding a little extra peace of mind with higher temp fluid. With those one or two upgrades you will be all set for at least your first season of tracking.