It's always hard to describe yourself, for me especially, and honestly, all I ever want to do is list the bad things.
Don't do that, ever.
Instead, list the good things and the things you enjoy doing:
I enjoy acting and writing and I used to dance. I also love to read, and listen to music.
I probably quote movies way to often, which is surprising since I hardly remember maths formulae.
Anyway, in the words of Dr Seuss "be who you are and say what you mean, because those who mind don't matter and those who matter don't mind"