[Startup Series] Q1. To founders, how do you manage with deflated lifestyles?

About the series - Asking questions that you generally don't find answers easily or think they are too basic to be asked Idea originated here - https://share.gvine.app/utBVxDbxRZxLFgzS9

Expanding the question - Most founders have worked high profile roles before going full time in building something of their own. The uncertainty in finances, in most cases reduction from the lifestyle their salary allowed them to maintain, how do they navigate that?