The best counsel is to simply grieve as you are led to. If you feel the tears flow, let them flow. If you have to shout and hit something, make sure its not something hard or something you can damage. In short, you need to release the various emotions. I remember feeling a sense of disorientation. The security of having parents is gone and you realize that you are now the parent. Don't feel like you have to be strong. Honor your emotions, and let yourself grieve. Attempting to stifle your emotions will extend the grieving process and harm you in the long run.