It definitely is overwhelming. Focus on what you can do to improve it (IMO mainly finding the right qty of vitamins / minerals, and maybe supplements and medication.

I talked to a specialist about creatine. She said it is depleted in TBI patients but supplementing it doesn't seem to help. Because it works preventatively may not mean it works as a treatment. I'm not 100% convinced either way, sometimes it seems like it helps. But it doesn't hurt to try, and creatine is fairly cheap.

I have a link to a pubmed study but says I can't post it because it says i need 10 posts. shame, its very good info.

The specialist did say to take CoQ10, even though she wasn't too keen on creatine. The two seem to be related. She also said to take riboflavin (vitamin b2), as that can help with concussion headaches. But don't take more than 10mg a day (complexes have as much as 50 or 100mg) as more than 10 sets the eyes up to damage from UV.