Have you gone into the forums for DID and PTSD? I would recommend doing that in order to get the support, understanding, and hope that you are searching for.
I have PTSD and DID-nos, as well as a few other illnesses, and I can relate to feeling lost & alone. It
is scary and frustrating too! The good thing is that there are a lot of people out there who care and they want to help. Gentle hugs to you!