First, stop fretting about the delay in treatment. There is no treatment for a concussion unless there is a brain bleed. Regarding TBI with high IQ, it is a double edged sword. We are usually acutely aware of our changes/limits but we also have the intelligence to devise work-arounds and other accommodations to allow us to continue on with a full life. We may need to reinvent ourselves to do this.

You have not told us what your symptoms/struggles are. Please tell us more about your symptoms and the treatments you have had. Also, what is your nutritional and supplement regimen ?

The worst thing for recovery is anxiety. Finding a way to let go of your anxieties will be beneficial for your recovery. You do not want to take on high stress activities. The concussed brain will not be reliably successful in high stress situations. It is possible to live a lower stress life. Even healthy brains should avoid high stress.

Please tell us more about yourself. Your age, time since injury, your history, etc. Many of us have likely been through similar situations.

My best to you.