Hi, fellow Washingtonian ( I'm from the Wenatchee area). Welcome to the forum... it's nice having you here.
It sounds like you've been through a lot, and that Camino will be part of the healing process for your mental as well as physical trauma. This forum is here to help as best we can. Please feel free to use the search engine to locate specific topics of interest in any research you need to do.
Also, there is a chapter of American Pilgrims on The Camino in the Seattle area, and that can be be a great resource for you. Check out their FAQs. They also have regular meetings and gatherings open to anyone interested. You can also obtain your pilgrim's official Credencial from them -- for free -- before you depart; and they can provide you with the first stamp showing your starting point of origin.
http://www.americanpilgrims.org/frequently-asked-questions-faqs-