I learned to hover on foam.
Foam is cheap, light and you can practice ANYWHERE! The entry cost is kinda high,(200 or more), but you can replace airframes for $20 and just keep practicing!!
These are the best foamies for 3D, IMHO
www.chargerrc.com
Foam will teach you the inputs and reflexes...bring it down and get comfortable DOD. Then you can move to glow, practicing high. Foam is easier to recover than glow or gas, but the stick movements are the same.
Just keep flying, you'll get it. (I am just beginning to hover glow lower than 3 Mistakes high and I have not even tried to hover my gassers).
'Pucker Factor' is your biggest hurdle when moving to more powerful and expensive planes.