For what it's worth, which may not be much, we have started treating our anxious, depressed, seems sort of ADHD/Aspie/sensory (but also does NOT check off a LOT of those boxes) 9yo DD with Rhodiola this summer, following a tip here. It's an herb, a so-called adaptagen, with quite a few studies showing efficacy in treating depression and anxiety. Though I would not say it is a wonder drug, we have seen noticeable and real improvement. It is possible that this is due to it being summer and DD being out of school, but last summer was quite bad. I'm just throwing this out there.