<human>: Can you condense the text into a few key points?

I did a 1 month internship which ended today. During that time I worked closely with a cute coworker I started to like a lot.

So today I said some dumb shit like "Hey, I wanted to ask you, since it's the last day of work today, if you want to go on a date with me". She started laughing and said "Woah that was direct, sorry but I'm not free today".

I got the feeling that she somehow took it as a joke or something, and because I'm a retard I didn't follow up on it and just took it as a no. Now I feel like shit and my already low self worth is even lower. 

Should I call her and actually ask her again? Or should I just leave it be?
<bot>: I asked a girl for a date and she didn't really respond and just laughed. Should I call her and actually ask her again? Or should I just leave it be?