Kia Ora – here are a couple of links to read
https://www.ycombinator.com/library/4D-yc-s-essential-startup-advice
https://www.ycombinator.com/library/61-order-of-operations-for-starting-a-startup

And this link is an access to the full Y-Combinator Library – https://www.ycombinator.com/library