I I tried Hydergine, Pyritinol, Idebenone, Picamilan, and anything that ends in -racetam (Piracetam, Oxyracetam, Anirycetam...know there's one more...). The trouble was I had the expectation that I could will my way up and out of being on the spectrum - that much at least didn't work and it seemed like the only thing that seemed to significantly help was the stimulant effect.
The only other problem - I never really took objective measures to see if my cognition was really enhanced. My best guess - if it was enhanced at all it wasn't to a noticeable degree.
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The loneliest part of life: it's not just that no one is on your cloud, few can even see your cloud.