in Islam there is different between two concepts between forgive and mercy .Sorry for taking so long to respond.
I was asking if you believe I can show mercy and not forgive. An example might be someone who steals my car and damages it. I might not forgive--or not let him get away with it--by demanding he pay for the damage done. But I might show mercy--or not punish him as he deserves--by not calling the police and pressing charges.
In this case, wouldn't I be merciful but unforgiving? If so, is it sometimes right to not forgive?
forgive is could be for some one who hurt you .
mercy is could be for some one who doesnt hurt you and who hurt you too .
so mercy is wide than forgive .
btw , in issue of personal problem
you need to forgive first than to be mercy .