I like that you're taking it into your own hands! Often times that's what we need to do nowadays, no matter how good a doctor's intentions may be.

For my brain, I currently still take:

-Neuro Mag from Life Extension, which I believe is the reason my memory is so good. I remember FAR more than I ever did before the injury. Pretty crazy.
-Alpha liopic acid
-Bacopa
-Ubiquinol CoQ10

I stopped taking these two a couple months ago, but was on them for about 8 months after my injury:
-Acetyl-L-Carnitine
-Fish oil

The Neuro-Mag is really a miracle drug in my opinion, but some of the memory increase could definitely be attributed to Bacopa too. Either way, maybe some of these could help you out. Hoping you can find some answers!