https://time.com/5380312/is-hypnosis-real-science/
supposedly works for most of the population too (even for pain management in surgeries)
http://accurateclinic.com/wp-content/uploads/2016/03/A-meta-...
https://cdn.journals.lww.com/anesthesia-analgesia/Fulltext/2...
Incidentally, I discovered another path to self-hypnosis - write a few scripts "in the style of" some of the accomplished modern hypnotists such as Igor Ledochowski and Sean Michael Andrews, for an issue that is near and dear to yourself. Really think your way through making scripts that you feel would differentiate their styles while also acknowledging the similarities. Improve them until you are convinced that the scripts you wrote is how they would have hypnotized you. Be able to explain every nuance as if each hypnotist is teaching you their method specific to the problem you are working on.
This makes you write scripts that you'll respond to effectively - using their styles and frameworks, but using your own thought process. It's a kind of Socratic path to self hypnosis, and easily bypasses your "critical factor," as Igor would call it.
Modern hypnotists are all still doing Bandler and Erickson methods in the end, even if barely detectable, but with current language, modern metaphors, and a rapidity that doesn't allow for examination before responding.
The two things that stick out most among all the modern hypnotists: NLP-style pattern interruption, and "embedded commands." Master those, and everything else we know about hypnosis today falls in line.