In your meditation ask yourself if you can accept the situation for how it is. If you feel you cannot, center yourself in the moment and ask yourself if you are willing to accept the situation for what it is, at this moment. Pain is sometimes mandatory, but suffering is optional.
For peace and serenity we will want to forgive others who have wronged us. For example I may be motivated to help but there are some people that I don’t loan money to because everyone knows they have lied and cheated people in the past. They are suffering so I forgive them (and don’t loan them any more money).