Brain boosting supplements advice?

Brain boosting supplements advice?
Added (1). Im currently taking Ginkgo Biloba, and i was thinking of adding Rosemary in my room cause its said that it "improves speed and accuracy".
And im gonna start taking these supplements/stuff aswell:

*Ginseng (from "ESI")
*Aronia Tea
*Krill Oil (from "Muscletech")
*Perwinkle tea / or i can keep the plant in my room, along with the rosemary.
*Im also going to quit eating sugar unless its half a 75% dark chocolate a day (as in 3 rows of it) , or if its from whole fruit.
Added (2). Can someone tell me with a good diet+calisthenics and these things what kind of outcome could i expect?
Feel free to suggest non-synthetic supplements.

Also ive come across these supplements while looking intu Opti-Mind, Alpha Brain and the likes, and its really predictable to see people overlooking good evidence against these products (research manipulation, criticism censoring +(celebrity endorsements.
Thanks in advance

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