That seems too general to me. Have you had an experience where you had to do a hard, correct thing? One where you discovered something about yourself? Found courage you didn’t know you had? Think about character development. Often these are impactful, difficult choices a person had to make…hence the prompt ‘character development’.
USNA is trying to get to know WHO you are, through your words. Both of my guys wrote about difficult, painful ‘life lessons’. NOT saying that’s what you have to write about, but rather expressing they were personal and impactful to who they are now.
As already mentioned, perhaps there is something pertaining to Class President that you can write about.