I'm about to date a d1 female swimmer (not trying to be arrogant). Tips to not mess anything up?

I don't want to come across as arrogant. That being said this is a huge opportunity for me. I was a VERY awkward shy, quiet guy before college. The whole time I've been finding out my place in the universe and how to be the best human being I can be: confident, physically fit, funny, successful, intelligent, etc. I've been blessed with good looks, so I was able to get two girlfriends before college actually. So I met this girl on "date my school" and weirdly enough, she swims for the team at my school. That's pretty insane. She's really cool from what I've insinuated over texting her like all day for the last three days. I'm going to go on a walk with her to get to know her better Wednesday night. I like to pretend like my confidence level is literally represented by the infinity sign, and that I'm the only one who can stop myself from my goals. I've figured a lot of things out so far, but as of now my social life is mediocre (not that bad, just mediocre). I'm afraid that I'll find a way to screw it up. I know this is a really good opportunity to meet someone cool, have more time to actually spent with someone and not be alone, not feel lonely, and have more parties and such to go to. Tips? I'm not good at writing by the way. I'm getting the impression that I'm coming across in the description as a nerd haha.
I'm about to date a d1 female swimmer (not trying to be arrogant). Tips to not mess anything up?
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