I can really sense how painfult it is for you to have all this love and great plans for your gf and you, while she is not in the same wave lenght with your needs. On the other hand, I think that the more pressure you put on her, the more likely she will run away.
It might sound a bit strange to you, but my oppinion is that the best thing you can do is accept her need for time, freedom, independence, safity or whatever her need might be. And trust me, acceptance is not giving up at all! I belivee that acceptance is the highest form of love. It is love itself - accepting that the other person is just as he or she is, that his or her needs are maybe even different of mine an dthat they are also all right.
I belive that we human beings are born to be free and that we like to do and act out of freedom. I think that even your girlfiend is going to choos you rather if she senses acceptance from your side, and not pushing her to do what you want. It is really an absurd thing with us humans - once we learn to acept hearing a no, it is less likely that we will get "No"-s in our lives. but be aware! this acceptance must come from your heart and not from your head!
So my advice is to try to master the highest form of love: acceptance. Try to accept her as she is, absolutely and completely. Thy to accept even if she says no to you. I think that love is more likely to stay once you are not tensed to keep it in any condition. Love requeres air, space and freedom. I know that it is not easy to do what I suggest, but trust me if you reach it, it will be one of the strongest feelings you have ever experienced in your life.
i really hope my life philosophy was helpfull to you. I am courious to hear what other have to say here as well. Wish you all te best, and fight for your love :)