I seriously undercharged when I started out meaning I had to work as many hours as possible to make ends meet. When I got confident enough to raise my rate, I was able to scale back my hours and work 3 days on freelance projects and 2 days on bootstrapping. The problem I found was transitioning away from the freelance projects (my bread and butter) and dedicating more time to my app which was putting more of a demand on my time as it grew.