In the meantime, avoid making major decisions, such as selling houses. Crying takes the pressure off. Just as a floodgate can save a dam, your tear ducts can allow healing tears to help you get through this time. Don't try to prevent yourself from crying. Telling the story over and over again, to a friend who will listen, a support group or a counselor, may be the most healing thing you can do.
Exercise is very important right now.
Many people like to write. Allow yourself as much time as it takes. The grief after a major loss can take several years. You will gradually feel better for longer stretches, but waves of grief will still hit you for a long time. This is normal.