Have you done a light fast? Read His Word on an empty stomach. It's very powerful. The Holy Spirit will comfort you

Katharina G this is a hard thing to do and you have my sympathy at the loss of your dad. The act of forgiveness is an act of obedience and a choice not a feeling. It is for your freedom and wholeness That God requires this of you. Ask Him for His help to forgive. And then choose to forgive as many times as You need to until you are at peace. If you do not this will poison you with bitterness and is not a healthy path to follow. I pray God gives you the grace you badly need in this situation.

"jestliže neodpustíte druhým jejich přestoupení, neodpustí ani nebeský Otec vám". Už kvůli sobě musíš odpustit. Je to jen tvé rozhodnutí. Nikomu neublíží, ale tebe zachrání. Ale to s tvým tátou mě mrzí.

"If you do not forgive others their transgressions, neither will your heavenly Father forgive you." You must forgive for your own sake. It is only your decision. It doesn't hurt anyone, but it saves you. But I'm sorry about your dad.