I am often in the same situation, very alone and isolated to the point at which I feel I am crazy from the aloneness. I think going to the Quaker church is a good idea. At least you will be with people, and perhaps attending a service will lead to further connection with others. I've found that sometimes just reaching out in any way possible leads to further connection.

Also, are there support groups in your area? A support group would be a good idea, I think.