I'm really unlucky to be with this girlfriend now. Don't call me superstitious, sometimes it's really weird. I'm crazy. What should I do?

Luck has absolutely nothing to do with your girlfriend. Believe me, it's not up to me. Bad luck. Find out the reason with her and find another way. Another day. After that, she will thank you and you will thank her. Because you two have gone through this road of memory and deep thinking hand in hand.