That is a loaded question. There are many factors that come into play. In my research and experience, most of the gains do not come from the therapy and treatments by professionals. We have control over more of our recovery. Learning to moderate environmental factors and improve our skills at dealing with stress and cognitive loads will do far more than what the pros can accomplish. We can continue to improve long after the pros have stopped or given up.

keep in mind that the pros need to measure gains to justify continuing care and therapy. Many gains come slowly and are near impossible to measure month to month.

There is also a great value to gains in personal maturity and wisdom that allow for great gains in functions. My NPA measured skills have not changed over the last decade but my functional skills have improved greatly.

We also need to differentiate between those losses that are permanent and those losses that are slow to recover. Treatable dysfunctions like vision or vestibular issues will likely have time limits to how long it takes for therapy to achieve its maximum result.

Never give up. You have far more opportunity to improve than they will admit.