You're either not hiring at all or it's probably your single biggest block of time.
If you don't need it yourself, and you're building something that someone else needs, realize you're at a big disadvantage.
The second part of how to hire: try not to.
If you look at successful pivots, they almost always are a pivot into something that the founder wanted. Not a random made up idea.
Share results (financial and key metrics) with the company every month.
I think as a rough estimate, you should aim to give about 10% of the company to the first 10 employees.