Sorry that you find yourself here, especially at this time of year, but the forum is full of experienced advice and support.
I found it very useful to get information about the diagnosis, so strongly recommend getting the 'Toolkit' of publications from this website, or telephone them on the number above, and here 0800 074 8383, option 2 publications. The people are very helpful.
With these booklets it will give information which will help you ask the right questions
It would be useful to post what diagnosis and stage that you are at so members can give you more specific information.
I would say you're doing the right thing keeping busy and occupied to stop the brain whizzing, which gets it too tired to deal positively with the situation.
There are many longstanding members on the board here offering advice and support so you are in the right place.
Best wishes, G