True happiness comes from inside out.To overcome a death or a breakup you need to put your mind, thoughts and emotions aligned; Prayer is the key. Pray to God to clarify your mind and to give you strength to handle this kind of situation. Humanly speaking it is hard, as we tent to loose the sense of life in situations like this. Only the creator of life can give you strength to tolerate death/breakups,etc,The other thing is what you can do for yourself: do things that make you happy. Doing things that make you happy not only help your body heal, but also distracts you from the object of your stress.