Have you confessed Jesus as your Lord and Saviour? Then you may have to repent and ask for forgiveness for you and your ex-husband. It most defenitely seem as though there could be some demonic presence in your home. Spiritual cleans your home of any occult books, music, pictures, etc. You may need to find a church that operates in the gifts of the Holy Spirit. And you may also need to be filled with the Holy Ghost with the evidence of speaking in tongues; thats power you need to fight back. Also anoint you and your children daily and continue to pray til you find the church that can help with deliverance. Also learn your authority, especially using the Blood of Jesus. There churches that willing to help get you healed delivered and set free