Try to be rational and logical. Marriage with a minor (less than 18 yrs) is against the law. True Love can wait. Crazy emotion to possess and own another person is not true love. Let her be an adult first. Make yourself capable and self sufficient.
If two adults are truly committed..they can find ways to be together. But, just raw emorions can not sustain the adverse waves of reality of life. Marriages not on the foundation of reality, strenghth and maturity donot succeed.
Love marriages are not for weak and meek. First, both of you need to be strong and independent and then, build the temple of love marriage on the solid foundation as it takes much more than emotions to live together and raise a family.