There is no benefit in seeking revenge. It's like glueing yourself to a situation that reminds you of deep pain and blocks your progress towards something better. If they hurt you, leave them to karma. Don't give them room in your mind any further. Focus on healing and moving on.
Most of your fears are your mind going on overthinking overdrive. Life isn't as bad as your thoughts make it to be. Control thoughts and filter negativity. Tell yourself it's all fine. Keep the mind occupied with pursuing what you enjoy. Be kind to someone. Trust your power.
True power is in ability to stay calm when someone tries to trigger you. If their actions and words don't bother you, they lose any power they want to hold over you. Stay unshakeable. Your indifference is the message they need.
Let no corrupt speech proceed out of your mouth, but only what is good for building others up as the need may be, that it may give grace to those who hear.
But the wisdom that is from above is first pure, then peaceful, gentle, reasonable, full of mercy and good fruits, without partiality, and without hypocrisy.
Whenever you stand praying, forgive, if you have anything against anyone; so that your Father, who is in heaven, may also forgive you your transgressions.
But love your enemies, and do good, and lend, expecting nothing back; and your reward will be great, and you will be children of the Most High; for he is kind toward the unthankful and evil.