Representing Pride as a Character Flaw

I'm currently making a flawed MC. Her main flaw is pride but I'm having a hard time representing it while still keeping her character awesome.
So how do I accurately represent pride in a character's behavior?

the first thing to do would be to go put "keeping her character awesome" away on a shelf somewhere.

character traits show up in different ways in different people/characters.think of people who know in real life, in public life, in books and movies that you would call "proud". What makes you think of them using that term?

"pride" (and its sister "vanity" ) would show up in instances where

*someone complements your character - how does she react?
*someone criticizes your character - how does she react?
*how much time and effort does she spend on her appearance?
*does she ask for help? how does she ask for help? how does she react when someone offers help?
*how does she react when other characters dont follow her advice or select someone elses idea over hers?

as a side note, are you asking this question because someone told you "your character is a mary-sue. give her some flaw."

This will sound dumber than dumb, but the first character I think of when we talk about pride as a flaw is the little triceratops from The Land Before Time. She has been taught by her dad to carry herself proudly, to the point where she not only won't accept help from anyone else, but refuses to admit that she could be wrong.

She is meant to be a child, of course, so that is a very child-like example. A grown-up person might be better practiced at the art of pretending to be humble, get along, etc., but their real feelings might could still come out when they feel criticized or provoked. I think it would be hard for a person like that to admit that somebody else might know more than them, or do better than them.

Pride becomes a fault when it compromizes the character's interests and goals. "Pride goeth before a fall" and all that. You can make the character's pride complicate reaching their goals. If pride and the character's goals are in conflict, something has to give. It may involve the swallowing of pride, failure in reaching goals, or the goals may be reached, but with more difficulty and with more cost than without such self-destructive pride.