I am a firm believer in the saying, "Show me a pill with no side-effects, and I will show you a pill that does nothing."
It appears you definitely have received some benefit, but if you do not mind me asking, at what cost?
> But it turns out neurotypical people can be productive without being driven by stress.
As some that is neurodivergent, I cannot even fathom this. I cannot function without stress.