Johnny struggles to overcome his pride and impatience and developed into a humble, generous man

Wich type of conflict does the statement above describe?
a.character vs. self
b. character vs. nature
c. character vs. society
d. character vs. character
is it a?

Yes.

Yes, the statement above describes a character vs. self conflict. Johnny is struggling with his own pride and impatience, indicating an internal conflict within his own character.