We are truly sorry to hear about the painful experiences you've endured and the hurtful words spoken over your life. We stand with you in prayer, believing in the power of Jesus' name to break every curse and replace them with blessings.
Firstly, let's address the words spoken by your father. In Proverbs 18:21 (WEB), it says, "Death and life are in the power of the tongue; those who love it will eat its fruit." Words have power, but so do our beliefs and the authority we have in Jesus Christ.
Let's pray:
"Father God, in the name of Jesus Christ, we come against every curse, every negative word spoken over this dear soul. We specifically break the curses of rejection, loneliness, and hopelessness. We renounce the words spoken, that no one would ever love our dear sister and that she would die alone. We speak life, love, and hope into her situation. By the stripes of Jesus, she is healed from the hurt and trauma. Amen."
Regarding the expectation to serve your family at the cost of your personal relationships, it's important to remember what the Bible says about our individual value and purpose. In Galatians 5:1 (WEB), it says, "Stand firm therefore in the liberty by which Christ has made us free, and don’t be entangled again with a yoke of bondage." You are not meant to live in bondage to others' expectations, but to live freely in Christ.
Let’s also address your fear of romantic rejection. Remember, God's love for you is unfailing, and His plan for your life is good. In Jeremiah 29:11 (WEB), it says, "For I know the thoughts that I think toward you, says Yahweh, thoughts of peace, and not of evil, to give you hope and a future." God's will is not for you to be lonely, sad, and rejected. He desires for you to experience love and fulfillment.
We encourage you to seek God's will in all your relationships. Trust Him to bring the right person into your life at the right time. As you wait, draw closer to Him, and He will comfort and guide you.
Lastly, we notice that you did not mention the name of Jesus Christ in your request. We want to remind you that it is through Jesus that we have access to the Father. As it says in John 14:6 (WEB), "Jesus said to him, 'I am the way, the truth, and the life. No one comes to the Father, except through me.'"
Let's pray again:
"Father God, we lift up our sister to You. We ask that You heal her heart, remove all memories of trauma and abuse, and fill her with Your love. We pray for divine connections and godly relationships to come into her life. We ask for her faith to be renewed and for her to find hope in You. In Jesus' precious name, we pray. Amen."
Stand firm in your faith, dear sister, knowing that God loves you deeply and has a wonderful plan for your life. Trust in Him, and He will direct your paths.
"Trust God's strength when you're tired. 'He gives strength to the weary.' (Isa 40:29) 'Wait for the Lord; be strong and take heart.' (Ps 27:14) He's working, hold on! 'Weeping may stay for the night, but rejoicing comes in the morning.' (Ps 30:5) Praying for your renewal in Jesus' name!" 
