If you wake up on Saturday morning and go surfing to decompress for the week, that is different from having to wake up at six every morning Monday to Friday and take investment bankers out to surf. One is elective and one is mandatory. Adults and three-years-olds are very similar, in that as soon as we have to do something, we start to resent it.
For instance with me, I don't like to do a lot of speaking engagements like a lot of authors do. I just find it really boring. I now only do two types: it's either top price or free. If you realize that income is intended to ultimately improve your quality of life in some fashion, then it makes it easier to forgo some the fleeting, high-maintenance opportunities.
I don't think you need any real world experience. It's a question of whether you want to learn the trial and error lessons on someone else's dime or on your own dime. If you get used to a cushy corporate job and automatic money, it's pretty tough to say: "I have to sell the car and get a smaller apartment because I'm going off on my own."
I do my best writing between 10 p.m. and 5 a.m.. Almost every friend I have who is a consistently productive writer, does their best writing between 10 p.m. and 8 a.m. My quota is two crappy pages per day. I keep it really low so I'm not so intimidated that I never get started. I will do the gathering of interviews and research throughout the day. I'll get all my notes and materials together and then I'll do the synthesis between 10 p.m. to bed, which is usually 4 or 5 a.m.
I will have a station on Pandora, and I will put a movie on and mute it in the background so I don't feel like I'm in isolation. Then I jam. It takes me an hour and a half to get my brain into the flow of doing anything writing related. So once I'm in that flow, I will bleed the stone for as long as I can. If things are going well, I'm not going to stop until I nose dive. But if it goes for an hour-and-a-half and it's like pulling teeth, then it might be time to go to bed.
Use RescueTime and trial it for a week, and try a low-information diet. Get a really cheap laptop that doesn't have Internet connectivity and do as much work on that as possible. As odd as it sounds, go back to pen and paper. Because once you're on the computer and distraction is a click away, you're just like a rat with a cocaine dispenser. You're going to get toasted.
It's 100% their responsibility. If you want to be a tremendous artist, and then expect people to beat a path to your door, you can try that. The fact of the matter is, it's not going to happen unless you meet someone who makes that happen.
So you can make it accidental or you can grease the wheels of the universe and try to encourage those things to happen. In that case, guess what? You're marketing. When people think marketing, they think of a cheesy sales guy. Marketing is knowing exactly who your customers are, and trying to get your product, your art to them. If you are creating art for yourself, well great, go live in a cave and do it. But if you're doing it commercially and you have bills to pay, it's not selling out to get your work to the people who most appreciate it.