Well I ran a solo startup so my experience might be different from others but for me, it was like living a dream. While working full-time somewhere, I started this SaaS business and soon after, the monthly income kept doubling to the point I was able to quit my job knowing my living expenses are cared for. When I quit, it was like wow, the feeling of liberation just hits you so hard. I worked for 7 years prior to doing that and now I was free. The feeling of being able to go outside anywhere at any time of the day, go shopping, or go eat at a nice restaurant, just relax at the beach, stuffs you just couldn't do when you are working full-time somewhere. It's like getting out of jail for the first time. That's what it was like for me to quit my job and focus on my startup.