The requirements to achieve the hypnotic state are a comfortable, quiet room and chair and a person of average intelligence who is not drunk from drugs or alcohol and is willing to become hypnotized. The only question is the ease with which you will achieve an effective state of hypnosis. That's something we will work on together. Hypnotheapy is not a contest of wills. Rather it is a cooperative endeavor in which the hypnotherapist is a knowledgeable guide, nothing more.
Successes achieved through hypnosis can be startling.
It may very well help you make the change you want on the very first session. As a general rule, it is wisest to deal with one issue at a time. However, many behavior changes also require support for secondary issues that must be addressed for the primary treatment to be successful. Self-esteem is often a part of weight loss treatment. This is an example of how hypnotherapy cannot make you violate your fundamental values or go against your deepest desires.