Why does earth's rotation and revelution is not felt by us?

Earth's revolution and rotation is not felt by us. Do you know why?
It’s easy to know these basic ideas. Earth has a centripetal acceleration or simply acceleration due to rotation. It is the cause for our movement when earth revolute around sun, but it is not felt by us. Because the earth has gravity. The earth's gravity is many times stronger than this acceleration and force caused by it.

Now rotation, it’s the easiest thing to understand. Just imagine that you are traveling in a train, why don't you feel its real speed? Or you are traveling in a plane, you are really not traveling with planes speed, but you don't feel it, because you also travel with relative speed of plane or train. Either we could say the plane or train travels with a speed, with the same you also travels or you can say the relative speed between you and plane or train is zero.

"For a thing needs to be in a particular condition, you need to compare that thing with another thing in that same condition already"