You're either not hiring at all or it's probably your single biggest block of time.
Before product/market fit, your only job that matters is to build a great product.
If you have several ideas that all seem pretty good, work on the one that you think about, when you're not trying to think about work.
Be suspicious of any work that is not building product or getting customers.
Startups are not the best choice for work-life balance, and that's sort of just the sad reality.
You should think about for the next 10 years, you're going to be giving out 3-5% of the company every year.