How are you optimizing your cognitive function on day to day basis?

What is your go-to routine when you need to work on a cognitively demand project?

Me:
>sleep 8-9 hours every day
>exercise daily
>read daily

>work on cognitively demanding tasks first thing in the morning
>1 cup of coffee max
>don't eat anything due to brain fog digestion causes
>go on walks to regenerate mentally

Anything else I should add?