I quit my job to become a freelancer. I also got excited with this new chapter of my life, and scared at the same time, especially if you're going to think of your upcoming bills. But as my friend told me, there is no perfect time to be ready.
If you wish to get something, go for it. There can be tough times, and if that happens, just think of the reason why you started to pursue what you really like. Use it as your motivation to keep going. Don't stop until you make it. Always tell yourself that you can do it.