Meditate on Jesus’ life. Jesus said to forgive seven times 70 times.
How can i overcome to love someone which hurt me so much?
That’s not easy to control our emotion but Jesus told that we should hate sins not people.
Pray for that person.
I had the same experience, it was really not easy.I had tried and failed many times. And then I came to God and prayed that he would forgive me for the sin I had hated others, and that he would give me the strength to live with forgiveness.Whenever I repent, God will turns the hearts of those who have hurt me so that they may know of my efforts for peace and unity in Christ