You have no doubt prayed The Lords Prayer many times. In doing so, you have asked to be forgiven of your sins as you forgive others. What kind of shape would you be in if God took you seriously about that pledge?
Be certain that you are living up to your part of that pledge. It is often difficult to forgive those who have hurt us, but this is what we pledge to God and what He pledges to us. If there is someone in your life who you need to forgive, take a step today to reach out to that person.
And forgive us our sins as we forgive those who sin against us.