Hello, Rose76! These statements from your post really stand out to me:

• "When they ask how did I get there and I tell them that I drove myself, then something gets said that implies there is not too much wrong with me."
• "I am not getting the level of services that I know is available and gotten by others."
• "There is nobody to accompany me and advocate for me."

An advocate is what you need. All the talk about advocating for oneself is great, but the seriously depressed are often (usually? almost always?) not up to that task. In my years of depression, I have only been able to effectively convey my state to the bureaucracy with the assistance of advocates of one form or another.

May you find the right advocate.