Don't take this as being harsh that is not the intent, intent is to save frustration and prepare ya better so you don't just throw your hands in the air and walk away from the sport, Your enthusiasm is great but it's the direction you take it that's going to end up a problem, meaning all of it towards COMPETITIVENESS you just got real good advise above from Weddle because your in for a huge learning curve that's going to take time and Patience and a lot of both, Because NO ONE can tell you at this point how long it will be until your driver will be ready to get competitive, I've helped Dozens and seen hundreds get started and they all react different and only seat time will tell ya when it's time to be asking questions your asking now, take Weddles advise SAVE your money now for when that time comes, I've herd it all before and one of the worst is I spent all this money to get lapped, Get a Smile on your face and a were just gonna have FUN attitude and hit the track every chance you get and Mentor, Mentor, Mentor then you will know when it's time to get competitive, Quickest way to push a new driver away from the sport is the mentor pushing the driver to quick to be competitive.
Welcome to the sport and Good Luck !!