You do not have to rely on only your strength to get things done.
Read: Hebrews 4: 15-16
15 This High Priest of ours understands our weaknesses, for he faced all of the same testings we do, yet he did not sin. 16 So let us come boldly to the throne of our gracious God. There we will receive his mercy, and we will find grace to help us when we need it most.