Hypnosis is a psychological phenomena, it puts a person in a relaxed state of mind which leaves them open to various suggestions which is why they’ll do things you suggest to them. They can also suggest things to themselves. All they need to do is become relaxed and at peace (a bit like meditation), then tell themselves what they’d like to achieve. Not everyone can be hypnotized though, and even those who can be, still may not gain anything from clinical-hypnosis. When someone is hypnotized, they have absolute control of themselves, they wouldn’t do something that they found highly objectionable. In short, hypnosis is nothing more than a state of mind, one in which the individual is highly relaxed and open to helpful suggestions.
Now you can decide.