Hello ThisWayOut: Yes, this would be SO difficult! Personally, I've never found a T I thought was worth his / her salt, as the saying goes. So I've always quit them before they had a chance to quit me.

I do applaud your past willingness to keep trying. And I certainly sympathize with your current despair over finding someone who will stick around long enough for you to accomplish what you need to accomplish. Perhaps at some point, when you feel up to it again, you'll be able to find a provider who's more dependable(?). In the meantime, I send you warm hugs to buoy you during this time.