I started vestibular therapy last spring and it made a world of difference for me. It took about six weeks to get rid of 80% of my symptoms.
The key was to only do enough to raise your symptom level a notch at a time. If you do too much it doesn't work. Another thing that helped me was to do the exercises before bed or before some down time.
The exercises are supposed to make you nauseous and dizzy, but not too much.
Also, don't do anything after the exercises that might heighten symptoms. I learned not to read, walk or do a challenging task after my vestibular exercises.

I have since stalled out a bit and that is due to the remaining vision issues. The last 20% of my symptoms are manageable if I am not working.
Know your triggers and limit them and prepare for them. For instance, only run one short errand each day. I can't run to five stores. Fluorescent lighting is a huge trigger for me. I carry visor and sunglasses with me.

I am still waiting to see a neuro opthamologist.
Su seb