I am deeply sorry to hear that you lost your father. I understand how heartbreaking it is for you and your family. When I lost my father I couldn't bare the thought of christmas without him but with each one that went by we were able to move forward with the comfort of the memories we all shared. It will be different without him especially the first christmas but as time goes by it wil get easier.
Continue taking it one day at a time and allow yourself time to grieve. My heart goes out to you and I pray that you and your family continue to have courage and faith.
......and yes you have been blessed with a very special angel indeed.