Different people, even in the same family, move through the stages of grief at different paces. Respect one another's timetables. Acknowledge your painful emotions. Nature's mechanism for releasing the tension and pain of loss is tears. Crying is not the pain, but the healing of painful emotion.
Laughter is okay too.
Laughter takes care of some of the tension produced by fear and anger. Write, draw or talk out your feelings and thoughts with a friend, support person or professional counselor. Writing and drawing in a journal on a regular basis can relieve emotional and mental pressure. Take care of yourself. Eat balanced meals, exercise moderately, and get enough sleep.