Even if you love what you do at your day job... The cobbler's kids go without shoes, and the chef's fridge is full of condiments & takeout boxes.
Bootstrapping is in my opinion much harder than VC backed.
When you finally take 1 day a month off and look down from 10,000 feet up
The reality of how things are going is gloomy
It might also help if you can mentally spin things to be more boomy. Optimists in the house