u/BangPro201

Me and my girlfriend are very different people, and I mean very different, her taste for movies, music, especially humour, activities and thought processing is very different than mine. I have a questions here too, can we stay like this? can we accept and work through our differences? And I don't really want to say this but she is really insecure and won't let me have any female friends, I've had many in the past who stayed just friends, nothing more and I'm sure of it until I stopped talking to them because she told me to, also I resort to females because I don't find boys capable enough of being friends with, I wish I'd find guys like me, it simply doesn't matter if they're a guy or a girl, I only make friends for the person they are. Plus, she doesn't really have an aim for the future and probably isn't sure about what she will study and become later, and this has me worried because obviously. I've received advice upon this and everytime it is "confront her and talk to her about it" but it does NOT work at all, I'm scared and don't know how to talk about it, please help. I'll provide further information about us if necessary. This may be because I'm paranoid or mentally ill, overthinking but we really really are different.