Human Design & Gene Keys aren't here to replace therapy. If you find yourself stuck and unable to follow your inner authority despite being told how to do so - go and see someone qualified who can help with trauma.
Beware that the usual "conversational therapy" might not always work here. If it the trauma occurred before your psycho-emotional self was fully developed - which is often the case - you'll need therapies that completely bypass the conscious mind.
Look for methodologies that work directly on the physical body, or deep regressions through altered states of consciousness, as well as the groundbreaking *Reference Point Therapy* used by @gauriph in her transformative sessions.