Contrary to popular belief, everybody can be hypnotized. The belief that only certain people can stems from decades-old research where researchers tried to hypnotize people under laboratory conditions using poor standardized hypnotic approaches. It is no surprise that under these conditions, only a small proportion of people were able to manifest a hypnotic response.
The truth is that if you couldn't be hypnotized, you'd never have learned anything. To really absorb new information, we have to narrow our focus of attention right down and temporarily exclude other factors - that is, enter hypnosis. This is how all ‘learning' works.
If you couldn't be hypnotized, you'd never have dreamed at night - dreaming has many parallels with day time hypnosis.
You can relax about hypnosis - it's all taken care of for you.