For those who believe in UA

How do the clouds, moon, and sun not fall down to earth like everything else?

The UA accelerates the Moon and the Sun.  Clouds by any number of ways: buoyancy, topographic lifting, convection, etc.

IF UA is true, that would mean the earth was always accelerating to a higher speed every second ? ....Acceleration is going from one speed to a higher speed, not a constant speed ?. That seems to be the problem in trying to make it make sense . It seems that if you jumped off a chair in the FE example, the earth would be coming up to your feet at a faster speed than from the previous time you jumped off that chair ? Each time you jumped,the earth would be coming up to meet you feet at a faster speed ?

If you had a theoretical car with a powerful enough engine for it to accelerate infinitely wouldn't it attain some fantastic speed after a while but keep on going faster all the time  ? This is assuming the car had  no limit to its top speed ?

Is this the so-called UA "Theory."

Well, except for that whole physics thing.

If you stepped off a chair, the FE always starts at a relative velocity to you of 0.  So no matter if you step off now or in 10 minutes, you always start at 0. 

I hope I was able to clear up your so-called 'understanding' of physics.