I doubt this is carved in stone. When there is an absence of better ideas, it is not uncommon for a plan to be made out of pure conjecture. The vestibular therapy is conjecture too.

Try to relax and go with it documenting in your journal along the way. If you struggle the first week of work, you can ask to extend the 2 hours per day.

Try to relax. You don't have any better ideas than they have. You just have anxiety. Go with the flow for 6 weeks and see where you are then.

My best to you.