+1 . First place to start is your tires. You can find yourself chasing a setup if you have the wrong tires. I'd suggest getting in touch with the fast guys at the track(s) you plan to attend and see what they recommend for tires throughout the day.

for me out here, a tire that works well enough in most conditions seems to be the proline blockades in M3 or M4 compound depending on how dry the track is.