[drinchev]

My steps were :

1. Save enough money for 3 months before I quit

2. Start looking for freelancing projects locally by asking companies that are looking for employees in my area to hire me as a freelancer instead of an employee

3. When you have 3 "yes, we can work with you on a freelance basis", I quit the company and approach the three of them until my first working day in that company.

I'm pretty sure these depend on your location ( I'm living in Berlin ), so you can ask around in some freelancing meet-up how can you start.