For a start you're trying to learn to hover with the wrong plane.

Go get yourself a decent profile model like the Mojo/Moass 60.

There's nothing easier to hover than a profile and when the inevitable happens (dumb-thumb) something like the Mojo/Moass will probably require nothing more than a new prop to get you flying again while that Extra would be turned into a pile of firewood.

Don't be put off by the looks of a 3D (some love em, most hate em) they are the very very best way to fly 3D if you can't afford or don't want one of those huge gasers.

I have a 50cc Extra 330L, a 91-powered P51 Mustang, a hot-rod aerobatic ship and several profiles. I fly my profiles 99% of the time because they're just so much more fun!