Worried about tonight?

So I'm going to my friend's birthday party! We all know it's going to be AMAZING! But I get homesick! There are 3 people who are going who know about it, but 1 knows everything about it! They said that I should at least try and stay the night because maybe I won't get homesick, but I'm still worried! What should I do? I'm taking my stuffed animal (I need 2 cuddle something like my dad). I'm 13 if that helps!