Hello there,
We know that the Earth rotates on its axis and also revolves around the sun, but, we cannot feel the motion. This is because the Earth spins at a constant speed. Also, the speed is very high. If the speed suddenly increased or decreased, we would have surely felt the difference.
For example, imagine you are in a car or a train which is running very fast, and also on a smooth surface. Then you would not feel much motion. Or, imagine yourself in an aeroplane. You don't feel motion there because it's moving with a high speed.
That's why we cannot feel the motion of the Earth.
Hope this answer helps you.
Thank you!