I wouldn't get too concerned about the terminology of "brain damage". Term I've heard a lot is "neuro plasticity", which refers to changes in neural pathways and synapses, including those resulting from brain injury. This basically means the brain has the ability to rewire and heal itself.

I had a NPA about two months after my accident. It said in part:

"Patient shows significant difficulties with visuospatial learning and recall, as well as mental flexibility and multitasking. He displays weakness in executive system functioning (retrieval of learned information, mental flexibility, abstract reasoning, problem solving, verbal fluency)"

After three additonal months of therapy, and second NPA reported:

“On examination, the patient demonstrated intact cognition in all domains assessed including learning and memory, attention, processing speed, language skills and executive functions. He has shown an excellent recovery from his severe injury only five months age. From a cognitive standpoint there are no concerns with respect to the patient returning to work full time or returning to driving.”

The honest answer is every brain injury is different and they heal differently. I consider my recovery miraculous but not unique. I look forward to hearing your full recovery story posted here soon. The very best to you.