Ginger, I will pray for you for wisdom as to God's will and plans for you.
Forgiveness is essential, but you also need to ensure that you are not placing yourself in a position of abuse.
It is important that you don't move church in offence, you will never move on with unresolved hurts, but at the same time if you are not able to trust or feel supported by those who should love and care for you pastorally, then that will be an ongoing need.
Just because you forgive someone, doesn't necessarily mean that they are right with God. You are just releasing yourself from their power to hurt you from that thing, but they will still have to answer to God if they haven't sought forgiveness themselves. That's a pretty fearful thing, maybe we need to pray that this lady gets a dose of the fear of God in her life and is able to see her need for repentance?
Try to ask the Lord to show you why your pastors are not willing to do anything about this? Ask them( respectfully) to explain what the Lord is showing them, so you can understand.
As the others have said, God will lead you and guide you. He has the answers. Just keep your heart humble and choose to forgive over and over if you need to. When you are tempted to dwell on hurt, just choose to forgive- as an act of your will. You will be keeping yourself open to God's blessing on your life that way
