Thanks everyone for your responses.

Cervicogenic dizziness was ruled out. I saw a neuro-opthamologist who only found minor discrepancies with my vision.

Supposedly the dizziness is from the brain injury, and my brain needs to habituate to what is the new normal. Eventually over time, the dizziness may subside. However, I had a couple ENTs tell me that typically if someone still has dizziness at a year from injury then it most likely is permanent.

I've been seeing a highly qualified therapist for VRT. I just recently cut out all processed food to see if that would help at all. I've been doing moderate cardio 3 times a week for months and have tried to continue my life and expose myself to things that worsen my symptoms to expedite habituation. I take fish oil, multi-vitamin, Q10, Vitamin B, and magnesium.

I am frustrated by the lack of progress even though I have put in a lot of effort into my recovery. That is why I was hoping to hear if other people had recovered from a similar situation that I'm at now.