+1 on Race Ex's advice.
I'd also echo CDR's point. You have set an extremely ambitious goal.
If you've never made it past 4/5, it's going to be a big leap to even hang with the Masters, and a quantum leap to be in the top 5 in the State.
Doesn't mean you can't do it, but its going to take supreme dedication, a very well devised plan, and some luck.