I've worked with hypnotism since introduced to it, by an uncle, at the age of about 12.

Powerful stuff, for positive or negative

You don't "forget" the hypnotic experience anymore than you "forget" last night's dream.

Personally, with over 30 years experience...I would not recommend it ....I got in and practiced, and still practice, self-hypnosis. Rudyard Kipling's "Kim" was a powerful scene.

Botton line: it is real, it does work, it is dangerous