Hello Self-Projected Projector.
Human Design is a good start.
Your curiosity will unfold to find out if there are answers within the Human Design system itself.
It reaches a point where you recognize the system can't answer everything.
You're not meant to put your eggs in one basket, instead you're meant to maintain a beginner's mind to uncover other systems and see the spaces that connect them together.
Much like a Venn diagram applied to a rose where each petal overlaps each other.
The key here is uncovering the systems where you see those overlapping spaces connect to a point that make the rose possible in the first place: the stem itself.
Essentially, the goal is to reveal a threshold where to knowthySelf is stabilized.
Nonetheless, what worked for me was Human Design, Gene Keys, and Vedic Astrology for objective material.
For subjective disciplines, it was the way of the Shadow Warrior with Gorakhnath, Trika Lineage with Abhinavagupta, and Recognition School with Utpaladeva.
Do not take my word for it, as these systems and the spaces in-between is what worked for me.
Confirm everything with your direct experience of Self-inquiry.
Your curiosity and wonder is all you have, do not let any system dictate the very part of you that makes you... You.
May all beings know peace, may all beings be free.