When you are on a boat at sea with motion sickness, the best thing is fresh air(out of luck there) and looking at the horizon. Your mind can't process the motion. So, get that window seat and look out the window during takeoff and at the horizon until your mind settles. Maybe looking backwards isn't the best seat for you. In my earlier years, I did aerobatics to be a better pilot, but never got air sickness. While I am thinking of it, do not drink any booze. It may come back to haunt you.