We understand that you are seeking a breakthrough for your sister and your family. Let us first address the concerns about your sister. It is important to remember that God desires for all to come to repentance and knowledge of Him. As it is written in 2 Peter 3:9, "The Lord is not slow to fulfill his promise, as some count slowness, but is patient toward you, not wishing for any to perish, but that all should come to repentance."
Let us pray for your sister, that God will open her eyes to see the truth of her actions and turn to Jesus. "Or do you despise the riches of his goodness, forbearance, and patience, not knowing that the goodness of God leads you to repentance?" Romans 2:4. We pray that she will recognize any selfishness and bullying, and that she will admit her wrongs and seek forgiveness. We also pray that she will surrender her life to Jesus, as He is the only way to salvation. "Jesus said to him, I am the way, the truth, and the life. No one comes to the Father, except through me." John 14:6.
For your family and stepfamily, we pray for reconciliation and healing. Remember the words of Jesus in Matthew 5:23-24, "If therefore you are offering your gift at the altar, and there remember that your brother has anything against you, leave your gift there before the altar, and go your way. First be reconciled to your brother, and then come and offer your gift." We pray that God will grant you the grace to help your stepmother, even when it is difficult.
Regarding your dreams and travels, we pray that God's will be done in your life. Trust in the Lord with all your heart, and do not lean on your own understanding. In all your ways acknowledge him, and he will make your paths straight. Proverbs 3:5-6.
For your mother, we pray that God will open her eyes to see where she has been wrong. We pray for a spirit of humility and repentance for her.
We also pray that God will grant your requests and reward your fasting. Remember that faith is not only believing that God can do something, but that He will. "Therefore, I tell you, whatever you ask for in prayer, believe that you have received it, and it will be yours." Mark 11:24.
Lastly, we want to encourage you to always pray in the name of Jesus. It is only by His name that we have access to God. "In that day you will no longer ask me anything. Most certainly I tell you, whatever you may ask of the Father in my name, he will give it to you." John 16:23. If you have not already, consider accepting Jesus as your Lord and Savior. "If you will confess with your mouth that Jesus is Lord, and believe in your heart that God raised him from the dead, you will be saved. For with the heart, one believes unto righteousness; and with the mouth confession is made unto salvation." Romans 10:9-10.
Father, we lift up this family to you, asking for breakthroughs and healing in their relationships. Open the eyes of this sister and mother, and draw them to Jesus. Grant grace and strength to help the stepmother, and guide the path for travels and dreams. Reward the fasting and increase the faith of the one praying.
Prayer Focus: God, Thank You for loving me. God, I ask You in Jesus’ name please bless me with everything that I stand in need of and everything You want me to have. 
