The need to go through hardships is buffetted when we see some Godly good come out of it, and even if we do not we can thank God showing our faith to Him!
The life is a hustle yet as much as we like to try to cash in and create windfalls our happiness and ultimate destiny and even our steps are determined by God
grace is hard to explain but essential to understand as we grow in Christ, in fact at moment of faith we might not even understand it and probably don't but its the grounds for His pardon