The phrase "full of courage" is correct and usable in written English. You can use it to describe someone who is brave and has a lot of courage. For example, "The soldier went into battle with a determined spirit, full of courage.".
"They're so full of courage and bravery and understanding.
"I don't understand why people say that I am full of courage.
That America, Obama said, was "full of courage, and optimism, and ingenuity".
The America I know is full of courage, and optimism, and ingenuity.
The true stories are full of fear, courage and resilience.
Suddenly, Carter and Sadie Kane are smack bang in the middle of an adventure full of terror, courage and friendship.
Tor Baz, the boy left to die, is adopted by Baluch rebels fighting the Pakistani government and grows up to be the wandering falcon of the title, a boy with no fixed identity, moving between precarious worlds full of humanity, courage, cruelty, and above all poverty so dire that survival seems to be the greatest virtue.
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.
Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com