Don't expect to compete in the Red Bull or even do displays initially. This is a bit like expecting to drive F2 immediately.
You need to get a few hours training to start, then you can assess how to get to the required standard.
It will probably take more training than you think, but you'll have great fun along the way. There are lots of interesting things to do as you gain experience. Aerobatic competitions (Loop do an excellent introductory competition), aerobatic display flying, Instructing others, etc etc.
I suggest just getting started with a few aerobatic training flights somewhere near you.
You didn't say how many hours you have or where you are based.