Give your heart a chance to grieve, to process.  Take care of your inner and outer self, and share your feelings with an empathic, non-judgmental friend who is willing to just listen and give you a soft place to fall.  Create a creative or sacred act/ritual of letting go of the mourning process, and follow through with it, while also opening a space for a whole new shift in your life by celebrating all that you have learned, and all that is yet to be.