I've tried all the nootropics you listed except for Adderall and Huperzine A.
For Modafinil, I don't use it very often but when I do I start with just a 1/4 of a normal dose and then take another 1/4 about an hour or two later. If I take higher doses than that I start to feel nausea. My favorite nootropic these days is Lion's Mane mushroom mixed with coffee. Have you tried Lion's Mane mushroom yet? It actually clears out beta amyloid plaques in the brain. The effects are more permanent than most nootropics. Here is a recipe for my daily mushroom coffee if you are interested:
https://steemit.com/coffee/@jeremycrow/mushroom-coffee-recipe-for-health-and-longevity
I enjoyed your post and upvoted it. Also followed you to see more posts on nootropics and freedom! Thanks for sharing your expertise!