Is it sensible for me to get an assistance dog?

I have FND. The episodes are triggered by stress and limit me in my daily life. They often disappear for a while and then come back. During episodes I have shaking attacks, etc.

I also have severe social anxiety and paranoia. I can’t go outside alone when it’s dark. During the day I’m afraid to go out alone as well. When my anxiety gets very strong, I also become paranoid. It limits my life. I’ve been in therapy for years, but it only helps to a limited extent. I am always in alarm mode and have to scan every room. Also I love dogs