Alie my dear,my DS2's death should/need not have happened, but the awful truth is that it has, and we have no choice but to plough on. It is so very hard, but we have to carry on. There is nothing wrong in having times where you want to weep and wail, shout at the moon or curse every person on the planet (including yourself) for not being able to change things, but ultimately you have to accept things as they are. It's not easy, especially in the early stage, so weep and wail, shout at the moon, curse, then take a deep breath and do what you can.
Much love (and some understanding) to you. xx