Hypnosis just doesn't work if you need convincing.
If you are going to a hypnotist to have them give you an answer; I would tell you that you would have more success doing some searching and reading and picking an answer out of the air.
Hypnosis works when you have a clear goal in mind but are having conflicting emotions about going for it. Working with a hypnotist will bring out the conflicts and provide some help for relieving some of the stress the conflict is causing. A good hypnotist will lead you through a process for reinforcing the positive emotions and diminishing the intensity of negative emotions that will aid you in accomplishing your goal. The key is that you must want that goal. This is why trying to have someone else convince you will rarely work. Read previous posts on purpose and knowledge
Hypnosis is also very good for creating a set of tools to help you change your focus when dealing with issues of pain or lessening the intensity of emotions when dealing with painful thoughts from past events. Depending on the severity the hypnotist could be part of a medical team working under their guidance.
Hypnosis then is best used as an additional tool for you to use in accomplishing your chosen goals rather than a means to create your goals.
[Disclosure] I am a certified hypnotist through the National Guild of Hypnotists