I have never missed home. I have spent half of my life away from home and never have experienced nostalgia. But, I know people who do experience nostalgia, and from their accounts I know that this can be an enormously strong feeling. If it is that strong for you, you should probably prioritize all other relationships, needs, and basically everything else below living at home, because otherwise nostalgia is just going to make you more and more miserable. Nor is there anything you can do about it - a person either has nostalgia or she does not.