It's unhealthy to pine over someone who doesn't want to be with you. I get the hurt but look how long you have been "trying" to fix it. You haven't tried everything, you haven't- detached, let her go, dropped the rope, quit pursuing or accepted the brutal reality. Feel your feelings and keep moving for you.
M22,H45,W45 S21/18D12 Retain faith that you will prevail in the end, regardless of the difficulties and at the same time confront the most brutal facts of your current reality, whatever they might be.