You seem rather confused about what grace is.
From the Miriam-Webster dictionary..
1grace
noun
\ˈgrās\
1a : unmerited divine assistance given humans for their regeneration or sanctification
b : a virtue comingfrom God
c : a state of sanctification enjoyed through divine assistance
Even non Christians know what it means.
Romans 11:6
But if it is by grace, it is no longer on the basis of works, otherwise grace is no longer grace.
I think you may be thinking of these verses and getting the meaning wrong..you are saved by grace through faith and not of works so we don’t boost about we saved ourselves and after you’re saved by grace through faith God has works for you to do..that He prepares.
Ephesians 2:8-10
For by grace you have been saved through faith; and that not of yourselves, it is the gift of God; not as a result of works, so that no one may boast. For we are His workmanship, created in Christ Jesus for good works, which God prepared beforehand so that we would walk in them.