Relationship dying

So I'm 19m and she's 19f , we both have had our own trauma in life and experiences, I've never been happy at all . First time I've ever been happy was with her and recently she's been pushing me away and is telling me stuff like she loves me so much but she dosent want to hurt me later on and she thinks she might be lesbian and stuff . Even without this I can see she's pushing me away due to family pressure and so much other problems . I don't know how to be ready for this , I'm trying my best to spent everyday with her like it's gonna be my last day with her , but I don't know if I should make her stay or let her go