Fishon, I can completely sympathize with your predicament. Your issues are about identical to mine. (once recorded 44 BM's in a six hour period from midnight to 6am.)
There have been several treatments which helped - or appeared to help - for a while, but things inevitably swing back. I'm sure you know the routine, so there is no sense in wasting bandwidth detailing every failed step of the way.
The doctor did warn me beforehand, though, that if things went well, I could expect 6 BM's a day. If things were not as well, it could be more. He didn't say how bad, but he didn't paint an exclusive picture of honey and roses after takedown, so I never felt betrayed or lied to. Every procedure I chose with full knowledge that it might go wrong or might not work well for me.
I think that is the major difference in our cases. It appears that your doctors were too optimistic. Maybe they were concerned that you might be terrified of the procedure you were facing, and didn't want to worry you.
But is that fair? Is that a decision they have a right to make? I don't know. I don't want to judge doctors that I have never met, but I'm glad I had realistic information to prepare myself.
Maybe they had just been lucky and never experienced a less than ideal outcome so thought it couldn't happen to them - that they had the "Midas touch." I wonder if certain "rock star" doctors don't have an ego out of proportion to their relative skills.
All I can do is to look back at the horrible state of my health with a diseased colon, and be thankful that the doctors saved my life. No matter the quality of life I have now, it is life, and that is better than the certain death I faced.
Good luck, and don't lose hope that something may come along to provide a solution.