Left foot breaking... the art of keeping the revs up by slowing down (for corners and the like) and keeping the right foot on the gas to exit at max speed.
Also - try "heel and toe". Right foot on the accelerator... heel on the clutch to change down and toe on the brake to dab them a little. Result is coming out of a corner with high revs... and in the right gear to get away.
More Barrettski driving tips next week.