Do i have a chance with her?

ok me and my gf taylor meet online we still ha vent meet although i sent her pics and i seen her on cam and her pics shes 13 im 15 i love her 2 death she told me she loves me back and i truly believe her i tested her and she ped we live 2 hours away shes atheist im Christan shes emo and anime i like some anime and im not emo but i still love her with all my heart its just lately shes been sad cuz shes trying not to fail cuz shes in honors and also she has few friends and many ppl hate her i tell her i love her she loves me but i get scared when she says that shes not good enough that im 2 good 4 her that i have a great life she doesn't and i tell her and i mean it when id trade in everything 4 her that its the opposite cuz it is because im dumb,fat,ugly,and just not good at all and shes amazing,smart,funny,kind loving and overall a great girl but she told me today that she might go 4 awhile and sell tell her friend that she is doing it and that she loves me but i don't want her 2 go it scares me i want her 2 talk ,love and care for each other so idk what 2 do i wont dump her but i don't want her 2 leave me cuz her probs so what do i do ?