As a developer what keeps up your drive to code every day?

Background: Been a developer for more than 8 years now. I am managing full-time job+ side hustle.

Problem: coding at my job and side hustle takes a toll and sometimes I don't feel like even looking at any code. I don't know how people do this every day.

Honest question - How do you push yourself to work when you need to burn oil at both ends?