Practice is the universal formula for success, the more you do anything the better you get at it.
Why should airbrush be any different?
Really, there is more to practice than just doing one thing over and over. There is the mind body spirit connection in all things. Doing it right means doing it “whole-ly”.
PRACTICE thinking about airbrush, visualize, like a golfer perfecting his swing.
PRACTICE from new positions, angles, paints 3-dimensional sculptures and models, develop MOTOR skills.
PRACTICE while in different moods, to different music, see the difference in your emotions and learn about yourself as the airbrush puts you on the medium.