I started as an engineering manager (CTO of a small startup) a few years ago; my life has changed a lot, and for every aspect you love and hate, I share the same feelings.

My additional advice here is to meditate. For real. Sit quietly long enough for your brain to switch off before making essential and impactful decisions that could harm your people.

In the beginning, you become a kind of parent-to-child genius. You have to accept them and also understand their ways. The more controls you put in place, the less control you will have, as they will attempt to jump around and oppose the unnecessary bureaucracy (I'll do the same, honestly).

My second advice is to always behave as if you are going to leave tomorrow. This will prepare your team and your peers and even improve your lifestyle.