Don't quit your job at all if you've got one, you're lucky, there's no guaranteed income with Steem or any type of job where you're working on your own. At least if you have a job you'll have something to fall back on. Maybe, maybe if you were getting way more than that each week you could easily afford to do it full time, but it's like with all this stuff, keep your options open so you don't fuck yourself later on.