Something I did in order to not confuse the whole left and right when the airplane is headed towards is to turn my body in the direction the airplane flies. If it is going left to right, face a little to the right (the direction the plane is going) and look a little bit over your shoulder. When it is going from right to left, turn left and look over your right shoulder. You dont have to exagerate these movements, but for me it really helped me to keep my bearings. You are facing the same way the plane is, (and if you were in the plane you are facing the same way as the pilot) Its a simple trick that helped me a lot. It has become habit and even now I catch myself doing that from time to time.