What kind of cognitive rehab are you doing?

Could some of your rehab effort be pushing you too hard?

One thing that helps me is to focus on today with a simple look toward the future. Too much angst about the past and worry about the future is very counterproductive.

There is not a magic window for cognitive rehab. Getting improvement with your physical injuries and head aches should be the priority. You can always work on the cognitive issues once the others symptoms are better.