Kindly forgive me if what I'm about to ask is uncomfortable in anyway. But I am stricken with grief and anger in my heart. I am aware this is wrong for my soul. But its when things take non-islamically that I feel most stricken with disappointment. My father has without my consent promised me to a family. I am already in love with a muslim man who I believe will help my deen and faith. How can I help myself and my cause. Any dua or insight?
Sorry to hear of that. Have you told him that you do not wish to marry that person? Perhaps talk to your mother and ask her to explain things to your father if you do not want to talk directly to him. If he does not listen to your wishes then you could ask the help of any male relatives you have. And if that does not help, if you live in a Western country there are various agencies who can help, although escalating things this far can seriously damage your relationship with him.
You should seek out all the help you can get from family and friends if necessary and perhaps you will find a peaceful solution. If absolutely necessary, you could even reach out to that family if at all possible and tell them you do not want to marry their son, maybe they will take your wish seriously even if your own family does not. You could ask for a private talk with the man, and during that talk you could tell him you do not want to marry him.