5 side hustlers who left their 9-to-5 behind share how they knew it was time to make the leap

• Five entrepreneurs shared how they swapped their 9-to-5 jobs for their side hustle.
• They told Business Insider what made them quit their jobs to pursue side gigs full time.
• One left his job when he made double from his side hustle — another said they quit too soon.

Experimenting with a side hustle can be a lucrative path to a new career. But if it becomes successful, it can be hard to know when to quit your 9-to-5.