Well as always I keep turning over the amino acid stone and the ones under it again & again, this week I've been researching what others say about balancing serotonin & dopamine.
But up to now the website that seems most useful to me & fits best to my own experiences despite the name ;-) is Trudy Scott's antianxiety blog everywomanover29. People like drjockers and Cynthia Perkins seem to have impressive knowledge about them too. But my excerpts of what they say (e.g. on my blog under "Up next") always boils down to the fact that the things they might do or say things differently, but those are all things I've tried already. She for instance disputes the theory that if GABA works you shouldn't take it, because it means your brain is leaky, and her argument fits for me, the alternatives don't. Reading her debate with the main proponent of the leaky brain theory is interesting. I've skimmed thru her book, but it didn't help me. The important stuff is there on the website, incl. her version of the amino acid "questionnaire", which she has developed further from someone she cites. 1-2 other therapists also mention "the questionnaire" positively, not specifically hers. It's nothing big or spectacular, just a list of symptoms with suggestions with which amino acid to start.
Said it before I think: I was lucky that the 750mg GABA I started with is still a good dosis for me, and less isn't, a colleague didn't do the test, but started with 100mg as I/Trudy Scott suggested, which was good, she added, but too miuch more was too much, so is now on 300mg.
Whilst my acupressurist didn't do the test and even 100mg was bad for her, so she did the test, then read the book and now has success with tyrosine instead. They are both opening capsules as she suggests, but that's too acidic for my stomach, so I bought empty capsules and powder and encapsulate everything. Her blog is also interesting because of the user questions and experiences on it, so much information.
She also comes across/words as a kind, considerate person, not someone throwing advice at your head, which is refreshing.