Forgiveness can be hard. one definition of forgiveness is to let go of anger and resentment. that means to let go of those haircuts and judgment of your college majors and being called slow. and to do it without expectations of what you will get back in return. another definition is to make things as right as possible. how can you make things as right as possible with your dad. let him know that you have made mistakes and disappointed him, but you are a different man today. live that life of goodness and forgiveness toward him. but it is up to him to come around. take care.