That's a tall order, beginer. The basic flying skills can be developed on a trainer, or a flight simulator program, for example. Those basic skills are required, with some degree of proficiency, to fly the more agile aerobatic planes like that Extra.

A good suggestion would be to get an RC flight simulator, with a transmitter - type controller. That would help with the basic skills. Another approach would be to get a training plane, or locate someone who has one, and would agree to train you.

I think the consensus of suggestions will be that your Extra is best left for a second or third plane.

Good luck,
Dave Olson