I'm 18 and am about to go on my first date EVER...?

Ok hun, 1. if he thinks your fat and ugly then he is a jerk who your better off without! 2. dont listen to his friends calling him a 'tart', thats their opinion and you have to make that decision for yourself whether he is or not. And with the date, just be yourself coz that is who people go for,girls that are themselves, not acting like someone they want them to be. Your be naturally nervous so dont worry and enjoy yourself =) good luck!