Yes
I tried to hypnose myself. Strange I know but I bought once a book about it and I really tried to hypnose myself. No chance...


I got professionally hypnotised when I was about 15 because I had bad tics from Tourette's Syndrome and low self esteem to go along with getting bullied at school.
I thought I just went to sleep and the next thing I knew I was waking up in this doctors office 2 hours later and no idea what I was doing there. But I was conscious and talking to the guy the whole time. I never knew what he said until a couple of years later when I asked my parents. He told me I was confident and happy and didn't have any problems, so I became much more confident.
As soon as I found out what he said I started getting tics again. Wish my parents never told me, but up till then hypnosis really worked for me. I'd probably go again.
I hear it's often very effective for quitting smoking too. They tell your subconscious that you don't like cigarettes anymore and deep down you no longer want to smoke.
I was hypnotized in a group for quitting smoking. It actually worked for 3 months for me. Then I thought "Wow, now i can just have one once in a while at a friend's house." Wrong!