If you dream that you are taking revenge; this translates that you have a very weak and wicked nature, which will make you lose some valuable friends, if you do not control it well. To dream that other are taking revenge on you; this denotes that you will be threatened by adversaries.
Pray that God will repair your life and protect you from the plans of the wicked. Psalm 91: 1-2.
This Verse can be recited in prayer for any attainments and protections; قُلْ لِّلَّذِينَ كَفَرُواْ سَتُغْلَبُونَ وَتُحْشَرُونَ إِلَىٰ جَهَنَّمَ وَبِئْسَ ٱلْمِهَادُ Q03:12. Qul lillatheena kafaroo satughlaboona watuhsharoona ila jahannama wabi/sa almihadu. Say to the disbelievers, 'soon you shall be overcome and be driven towards the hell what an extreme evil bed that is!