I am so sorry. I will pray that things change for the better. When relationship issues bother me these days, I listen to Christian music to comfort me. Do you have a pet? If not, I strongly recommend it. I know I feel starved for love and comfort these days and I think most of us have strained family relationships, friendships, marriages. I know it really hurts but GOD knows the love in your heart. I pray for your sister's health and your relationship with her. Until things improve you know that you have us to listen and to love. Sending a huge virtual hug. Hang in there.