Long distance girlfriend

Hey, I’m not really sure why I’m writing this but lately I’ve just been feeling down about my relationship because I feel like it’s preventing me from moving forward financially. I had started saving and had managed to save $700 and I was so proud of myself... I’m 18 years old just trying to build up my credit and not be broke all the time but I find myself always having to spend money on this relationship instead of paying off my credit card or putting money aside or using it in a more responsible way. And I’m just frustrated with myself. I’m not sure what I should do :( I guess it just comes with the territory of being long distance