I'll add getting a proper amount of sleep. It's taken till my concussions and the aftermath for me to finally regulate my sleep schedule and get a good night's sleep. Prior to this I was all over the place. I am on medication (amitriptylan) to aid this, though, because at first I couldn't sleep more than a half hour at a time. I feel much better now after a full 8 hours.

And I second the advice to have someone with you at appointments. Because my mom was with me we were able to catch my neurologist in a slip-up that I probably would have forgotten had I been on my own.

Good luck!