My girlfriend doesn't believe in long distance relationship, what should I do?

These days we discussed a lot about our relationship but I couldn't make her understand that I'm trying to change, trying to be the man she's been waiting for. The problem is she doesn't believe in long distance relationship, she told me she needs a boyfriend who can be beside her and meet sometimes. I know I had a lot of mistakes before and I've explained to her already and I'm realizing everything now, facing all the situation for making better, brighter future for her, this is what I told her. But she's afraid she'll get hurt again and most importantly she doesn't have confidence in long distance relationship. How can I make her to believe in me and how to make her understand that long distance relationship can be good and it has benefit? I tried to ask her to come on skype before so that we can do video chat but she said it's no use, she wants to see me in real life not through webcam. I also told her long distance relationship is hard but we can work it out together but she still doesn't believe, I'm trying to send her messages, call her and something like this. I'm in another country and don't know when I can be back to her, what I've told her I need 2 years time to be a man she's been waiting for and if there's a chance then I'll come for a visit. We're pretty far away from each other, actually not that really far, just a couple of hours away but due to my mistakes before, my parents don't let me to go back, maybe later when I prove to them that I can stand on my own feet and can decide to good way. I've also asked my girlfriend to come here but she said she doesn't want, I can buy her plane ticket but still no. Please help me! What should I do? How to make her understand that I really want this relationship, don't wanna leave her and make her understand that there's a hope? We haven't seen each other for about like 2 months and I'm so in depression now. Thanks so much if you can help me out!
Updates
+1 y
She doesn't call me or text me often like before now... But there was one time I didn't contact her for 2 days and she asked me why I didn't contact her, I don't miss her now or what? Am I seeing others now? I'm really confused, she's giving me mix signal
Updates
+1 y
even if we didn't break up yet but she told me before there's a guy she wanted to know more but I don't know about now. She said she started to hate him because she found out he's concentrating on his stuffs so much
My girlfriend doesn't believe in long distance relationship, what should I do?
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