Just read this beautiful, simple yet powerfully articulated piece by Sri Sri Ravishankar (Art of Living organization) on how can we forgive others and let go of the burden. This cam make our minds lighter, making us more peaceful and serene. It can help us do the right thinking avoiding any rash, hasty or random decisions. Verbatim piece is as follows:

 

Q: I say that I have forgiven, but when I am meditating, the past comes back and I feel that I am losing out on my experience. Forgiving is easier said than done. Please help me to forgive and be free because I am still hurting.

Sri Sri Ravi Shankar: Forgiving is not only difficult, it is almost impossible as long as you think that someone is a culprit. But if you see that person, whomsoever you want to forgive, not as a culprit but as a victim of situations, a victim of ignorance, or just a postman to deliver what was due to you, you don’t need to forgive them. They just simply disappear from your domain.
When a postman has delivered you a parcel, that’s it, you don’t think about the postman. You are with the parcel, whether you like it or not. You do whatever you want to do with the parcel. This is exactly the attitude you should have.
As I said the other day, when you get a nasty email, you don’t bang or throw your computer or laptop because you’ve got a nasty email. Whatever email came, the laptop just reflects that. That’s all! Similarly, people are just like laptops. You don’t need to forgive them. You simply need to have a better understanding.
If you ask them, sometimes, they also may not know why they behaved that way, why they did acts that hurt you.