Keep head movement to a minimum by trying to look ahead over the nose. Disorientation can be quite severe until you get used to the motion. Some never do properly.
I could do spins and aeros but I still can't stand being spun round even on a kiddies roundabout.
Remember that wings were invented as a cure for motion sickness as they prevent the fuselage from rotating with the prop. You can also try sitting under a tree.