If you’ve been thinking about it, you’re cut out for it.
It takes a hell of a lot of time. Prepare for that, and make sure that you are willing to make a lot of financial and social sacrifices.
But it’s worth it – believe me. No more bosses, no more bullshit from idiots at work. And if it still turns up, at least you can fire them. I quit my job two years ago and I never looked back since.