Undergraduate / Rewording and shortening a Yale Short Take [4]

I'm an international student and I have given an answer to a question in Yale's Supplement but I feel that it does not sound American. Could anyone please help me to reword/rephrase it in order to get a nicer and a SHORTER sentence? Must be 25 words or fewer! (Now it is 28)

What do you wish you were better at being or doing?

My answer: My friends often laugh at me when I tell them a story for the umpteen time. I wish I could remember exactly what I have already told them.

I would appreciate your kind reply as soon as possible as the application deadline is Dec. 31...
Also, if you feel that my response (overall) isn't good enough, please let me know!