I think it can be possible to grieve the loss and find a new one who is better suited. I don't think continuing to go back to the one who is no longer working is a good plan unless one can find a use for that one. I found letting myself take control and recognize it just is not working and I get to choose what is -was useful. I found a second one who is much better, no constant frustration, she does not blame me when things go awry etc. there is a giant difference in how I feel when I leave the second one than he first. The grounded understood feeling is is very different from the frustrated rage I had every week with the first until I got the first to quit talking.
For me, limiting the first one to things she could not screw up, was the gift I gave myself.