Go. If it is something worth having revisit it later. But for now, go and spend some time with yourself. See if she is something worth making the changes for or if you really are happy with yourself the way you are. It is never right to change someone, but finding someone worth changing for can be a great thing - but they must be worth it. It is true, anything worth having is worth fighting for, but if you are asking this question you don't know if she is. You need to take some personal time, then come back and decide. Good luck!