Part of the trick is not to get very dizzy in the first place. In your initial flights, make them short, 5 or 6 laps. Then as you get used to it increase your flight times. As soon as you get where you can fly maneuvers, particularly lazy 8's, your problem is solved. I'd suggest starting to learn to do maneuvers as soon as you can put the airplane where you want flying around level. Also learn to fly inverted as soon as you can. Easier to learn early, and you can deal with the reverse-rotation dizzies easier.