hermanator,
As Haines said,
There is no day to day measure of progress. Improvements come over a longer period of time. Two weeks should be a minimum interval.
BUT, by you statements (9 setbacks), you appear to be too focused on tracking your ups and downs.
You are also likely measuring everything based on your premorbid (pre-concussion) condition. That is the wrong target. You are concussed. You present condition is all that matters. Rather than fight your present condition, try to accept it as your normal for now and be patient for improvements.
Improvements often sneak up on you when you are not looking. They rarely show up when you are looking for them.
Have you been assessed by a behavioral optometrist ? Your screen issues suggest a visual processing fatigue issue than may benefit from therapy.
Health Care Locator Custom has a referral system if you are in the area they cover.
btw, How did you hit your head on the roof of your car ? Maybe understanding the specifics of the impact can shed light on the issue.