Practice something then it becomes your secondary nature

We are conditioned souls and by our conditioning we have a tendency to become angry.
Bhishma deva says “The antidote for anger is forgiveness”.
We have to practice forgiveness then secondary nature forgiveness replaces conditioned nature.We can take an example of deleting an object from computer to compare forgiveness and Bhakti.
Forgiveness keeps the anger in trash but when there is any offense it comes back to hard disk.
Only Bhakti has the power to remove the roots of anger or anarthas.