Walt Disney was fired from a newspaper for lack of ideas. He later went bankrupt before building Disneyland.

There is no mistake except to stop trying.

Philippians 4:13
I can do everything in Christ who strengthens me.

2 Corinthians 12: 9
And He has told me: My grace is enough for you, for my power is made perfect in weakness. Therefore, I will rather boast in my weaknesses, so that the power of Christ may abide in me.

Ephesians 3:16
May he grant you, according to the riches of his glory, to be strengthened with power by his Spirit in the inner man;

Colossians 1:11
strengthened with all power according to the power of his glory, to obtain all perseverance and patience, with joy

1 Timothy 1:12 I thank Christ Jesus our Lord, who has strengthened me, because he considered me faithful, putting me in the ministry;