Their psychiatrist could simply have a personal issue with the treatment protocol and not want to use it due to their personal biases, or maybe the results from their last experiment were disheartening and they don't feel like giving it another go.
> he said he tried with a couple patients but didn’t see any long term results so didn’t want to put me on it
To me that's a very reasonable take if it's coming from a real psychiatrist, OP doesn't tell us his life story. The trained professional thinks there are better solutions for his patient because he tried the protocol on other patients and saw no long term results. If you read that statement and think "OP should try other psychiatrists" then to me that just sounds like you think ketamine is some kind of miracle drug.
As with everything else in life YMMV, but if taking drugs to address a specific issue (i.e. non-recreational), then listen to the person that spent +10 years studying to help you.
