We understand that you're going through a difficult time, and we want to lift you up in prayer and provide some biblical encouragement. Firstly, know this: it's important that you have prayed in Jesus' name and to Jesus. It's only through Jesus that we have access to God the Father. For through him we both have access by one Spirit unto the Father. When a person puts faith in Jesus Christ as Lord and Savior then they can pray in Jesus name. It is only by the name of Jesus that we can be saved. Sins separate us from God. The punishment for sin is eternal death. Jesus Christ died for our sins and rose again. Believe in Jesus and confess with your mouth that Jesus is Lord to be saved.
It's commendable that you have distanced yourself from those who have mistreated you. The Bible tells us to bless those who curse us, and to pray for those who mistreat us. We are to do good to those who hate us. It is clear they have offended you. Follow the admonition in Matthew 18:15-17, and go to them and explain their fault. If they don't listen, take someone with you and go again, explaining their wrong. If they still do not listen, and they are professing Christians, take it to the church. This can help keep accountability for those mistreating you.
It's also necessary to address the anxiety and fear you're experiencing. The Bible tells us:
Be anxious for nothing, but in everything by prayer and supplication with thanksgiving let your requests be made known to God. And the peace of God, which surpasses all understanding, will guard your hearts and your thoughts in Christ Jesus.
Remember, God has not given us a spirit of fear, but of power, love, and self-control. Trust in Him to deliver you from this situation. As you wait on God's deliverance, He will renew your strength.
Let's pray together:
Heavenly Father, in the name of Jesus Christ, we lift up our brother to You, asking for Your healing and deliverance. We cry out to You and know that You hear us. Father, we know that You don't want any of Your children to live in anxiety and fear. So, we ask You to fill our brother with the peace that surpasses all understanding. Help them to see that he doesn't have to be afraid, for You are with him. We ask that You turn this situation around for his good, and teach him about how to handle difficult people. We also pray for those who have mistreated him, Father. We ask that You soften their hearts and turn them toward You. Help them to see the error of their ways and to turn from their wickedness. We pray this in the name of Jesus Christ.
Prayer Focus: God, Thank You. Thank You for loving me. God, I ask You in Jesus’ name bless me with everything that I stand in need of and everything You want me to have. Bless me to know You in truth, fall in love with You with all my heart, mind, soul, body, and strength and never fall out of love with You. Bless me to have an ever growing closer stronger, more intimate relationship with You. Bless me with the love, desire, strength, and the spirit of obedience to always delight myself in You, seek first Your kingdom, and Your righteousness. Help and strengthen me God to always respect and obey You. Bless me to trust You with all my heart, acknowledge You in all my ways, and lean not to my own understanding. 
