Guys please suggest me , what should I do if my girlfriend does not listen to me?

So my girlfriend wanted to go on a trip with her friends including some of her female and few male friends, it was a 3 day camping trip and i asked her not to go but she didn’t listened to me and went anyway. I feel so stupid, she didn’t listened to me what should i do now. I want her to listen to me and respect to what i say at least
Guys please suggest me , what should I do if my girlfriend does not listen to me?
Post Opinion