screw up your courage
idiomPart ofcourage
screw up your courage — idiom
1. to force yourself to become brave enough to do something that you are afraid of
1.idiom
Definition
to force yourself to become brave enough to do something that you are afraid of doing
Example
Theo screwed up his courage and knocked on the director's door to ask for a second chance.
Emma screwed up her courage and jumped off the high diving board into the cold pool.