Am I wrong?

our relationship has been pretty rocky I've accepted her for who she really is and I love her more than anything in this world but idk she seems to always be on edge and she thinks I'll leave after the slightest problem or whatever but anyways just recently I've started to notice she isn't really taking her of her mental health issues and she doesn't love herself so I broke it off with her and I told her that she needed to focus on what's more important (her sanity) don't know if I spelt that right haha and she needed to learn how to love herself before she could love me. Am I wrong for this? I feel really guilty for doing this but I feel as if this is what she's needs and I love her so much and it's killing me to even do this and I just need some inputs anyone..?