Therapy works by helping you recognize your unhealthy patterns of thought/behaviour and teaching you how to change them to improve your mental health. You do most of the work - the therapist just guides you and shares their professional knowledge when applicable. At the end of the day, the therapist doesn't even really need to "get you" all that much; I've been able to benefit from sessions even with therapists I didn't connect with well. Gain insight, use it to make changes, live better.