There's always some degree of playing along with it to hypnosis. It's not mind control, and even while hypnotized, you can reject suggestions or break out of the trance entirely whenever you want.
From your comment, you probably were hypnotized to some degree. You can prove it to yourself either way by basically skipping the induction (zip through the very short induction quickly while consciously refusing to cooperate) to ensure that you're not hypnotized, then play along with the suggestions after the induction is over and see how it feels. Play through again with the long induction while trying to be cooperate with the induction and see how the rest of the session after that feels. If they feel about the same, then it didn't work. If they feel wildly different, then the difference is because you were hypnotized.