How to Check Compression

I really want to thank you guys for taking the time to pass info on.
:prayer:
It seems that I'm constantly having to study up on stuff I want to do. In some cases I'm totally in the dark.
:read::study:
My memory isn't what it used to be anymore and I sometimes have a hard time absorbing new info. But I'm not to the point where I'm drooling on myself yet (knock on wood).
:dontknow:
Thanks again!