Please tell your husband for me to back off. Nagging you to go to therapy isn’t helpful. Being loving and offering to go with you for at least the first couple of sessions might be. Ask him to please only talk about it if he can offer concrete help and support.
To respond to your other points: Therapy has the most impact in the first few sessions. It’s definitely worth going for the 8. Then take a break and work on integrating what you learned. Another year will roll around and you can do another 8 if you feel the need.
I certainly understand the worry about the cars. Have you considered online therapy? Some therapists are now offering the option of using Skype or a chat as a way to do at least some of your sessions.
You’re right. It may not help. You may get an incompetent therapist. You may not have many choices. But — if you don’t try, you’ll never know if it could have helped. You may find yourself with a jewel of a therapist. The only choice may be the right choice for you.
You’re also right: If you don’t move, you’ll be in the same position. For that matter, you could keep yourself in the same position if you do move. That’s up to you.
You know what I think? I think writing your letter was a first step in getting ready to get ready to try therapy. You’re getting warmed up. I know that you know that if you could solve your own problems, you would have done so already. So I think you’re working on getting used to the idea. I hope you will take a deep breath, gather up your courage, and give it a go. To give therapy a jumpstart, take your letter with you to your first session or talk about your anxiety when you make the phone call for an appointment. I did mean what I said about your husband as well. Consider taking him with you. It may be that his behavior is contributing to your anxiety and depression. A few couples sessions may do you both a lot of good.
I wish you well.