I imagine that OP has done his due diligence, but if it were me, I don't think I'd handle the transition very well. Like any other branch of medicine, psychiatric practice is tightly regulated, and operating outside the standards of the professional community is strictly forbidden. That means that innovation is no longer part of his job description, as that responsibility falls principally to researchers.
In other words, OP has basically left his job as a developer (of software) to be a sysadmin (of humans). Not to disparage the choice, or even remotely suggest that it's the end of the road! Only to say that existential dread can await you no matter what path you choose.
Lol, that's a terrible way of putting it. A sysadmin has a lot of power over the systems they control. A therapist is like a consultant brought in to evaluate, but with no actual power.