Are you a coward?
Are you afraid of losing money/reputation?
The way to create courage is to do the very thing you’re afraid of.
Afraid of losing money? Risk money on an investment. If you win, great. If you lose, you’ve taken away some of the fear you have for losing money. You’re still alive!
Afraid of public embarrassment? Do a speech in front of strangers. If you nail it, great. If you stutter and stumble and fail, you’ve taken away some of your fear of public embarrassment. You’re still alive!
Pain fosters courage.