Me [23 M] and my girlfriend [19 F] can never get married! [2 years]

So the story is so long but I'm gonna make it short and simple. As the title says, me and my girlfriend can never get married, why? because her parents rejected me, so basically whatever I do is worthless cuz I know that her parents will never change their mind so I'm kinda accepting the fact that we won't get married. But the problem is, we can't just break up like that, I told her many times that we are better off separated but she denies that and insists that we still can be together by some kind of miracle.

What makes me really frustrated is that I live in a different country from her, so even if we wanna see each other, it's impossible! I really don't know what to do. I'm thinking about breaking up with her everyday, but there is no real reason for that! I mean she did nothing wrong to me, I still love her, only thinking about breaking up makes me almost cry.

I really need any advice from you guys, anything. What should I do? and what would you do if you were me?

EDIT: I didn't explain why she would need her parents' permission to get married, unfortunately that's the way it is in her country (also mine but not for now at least). A woman needs her father's permission to get married, on the other hand, a man doesn't need any permission for no one (it's soo sad I know but what can I do)

tl;dr: Me [23 M] and my girlfriend [19 F] can never get married! neither can we see each other. I don't know if I really consider breaking up with her and just move on, I just want any advice, anything I can do with my situation.