Looking to start 1on1 therapy

I have had anger issues pretty much since A few months prior to turning 6 I am 24 now. I want to be able to find the root cause of it as it is starting to wear me down both physically and mentally. I have asked my family many times as to what had happened but either they are being reluctant on telling me or just that they don't know which I don't believe is the case. I was thinking of doing hypnotherapy to open up the repressed memories but I wanted advice as to whether their is A better method of therapy than that or should I go that route to find the source of it all.

Hypnotherapy is not a broadly accepted method because the "memories" that can coem up in this form of therapy are mostly inaccurate. In addition purely trying to remember repressed memories is not what a complete psychotherapy is about. It has been shown for example that one of the most essential features of therapy in regards to positive outcome is the patient-therapist relationship, the actual method being important, too but way less than this. In addition to this therapy usualyl focuses either on cognitive and behavioral changes, or on the working-through of unconscious conflicts, not so much on the reactivation of repressed memories, which can purely retraumatize you and have a negative effect, if you for example, cannot cope with the memory, make sense of it and so on.
That being said if you are looking to gain a deeper understanding of yourself, then psychodynamic therapy is probably the way to go.