Can The Therapist Control Me During Hypnotherapy?

Absolutely not! In Hypnosis, you are always in control.
The therapist is the facilitator, bringing to the fore what is deep within your subconscious mind. You are in complete control and reveal only what you wish to reveal. The methods used for therapy and the suggestions given, work when they are in line with your desires and intentions – that is the only way the subconscious mind will accept them.
Hypnosis is a completely based on client consent where it is a partnership between the Hypnotherapist and the client.
You control the experience, and it is the ownership of that experience that gives results. More importantly, anyone in a state of hypnosis can very easily and safely return to the normal awake state at any time.