"Commit thy way unto the Lord; trust also in him; and he shall bring it to pass." Psalm 37:5 (KJV)
There is always a tendency to want to get even with someone who has wronged us, or delight in some evil person's demise. The 37th Psalm let's us know what will happen to wicked people, but it isn't our place to try and make it happen. God is the only just judge in these matters. We have to do what we know is right, no matter what people are trying to do to us.
We have to trust in God, and know that He is working it out for us. Everyone doesn't want you to succeed, especially if they can't take credit for it. God is using your haters to strengthen you. He wants to make it perfectly clear that He's the one who brought you out (brought it to pass). When we see our enemies being justly handled, it isn't right to mock them. It's nothing but the grace of God keeping you from your rightful punishment.
Pray for those who persecute you, whether they do it in the open or behind your back. Turn them over to God. Read the entire 37th Psalm, and give God the glory for your deliverance from evildoers. Jesus prayed for the people who crucified Him (and those who are still crucifying Him). We must pray for our enemies, and have compassion for them. We have to love them because that's what is right. Doing what's right according to the Word of God is what invokes the promises and blessings of God.