Fight, or let shit happen, fight, even if it is a struggle, it may make no difference at all, but at least you know you fought well and to the best of your ability. Using the chain to document is a good idea, you may or may not be able to see changes, but perhaps a few of us that read on a daily basis will detect some, so far I have not seen any diminished ability to write, this may be a saving grace for you, you are so used to thinking and writing at the same time.
Continue to recover, and continue to grow and learn. The movie and the book were great.