How Many Takeaways can One Book Have?

I feel like an overstimulated busy bee. I keep buzzing around to new ideas, one after another without actually completing anything, the way that a bee buzzes from flower to flower to accumulate as much pollen as possible in a short amount of time. 

How many takeaways can one memoir have? 

The memoirs I have read usually have several so hopefully I’m in a good place. 

My strategy is to write as much as I can when the ideas occur to me and I can just go back and clean it up later. Right? 

I will let you know.