sacred questions

the mystery between our work and God's. between the return of our good work that may appear empty at the time. do things truly resonate in eternity? is it only the good things we do? what about our mistakes? if God "blesses your good choices" what does he do with the bad ones? is growth and progress because i am strong and a fighter or purely grace? what is the role of God in our toil and suffering? what is mine?