I have a different sort of artsy job- I'm a landscape designer.
I'm 31 now, and I have been in the field since I was 16. I started out being an assistant to the other designers, just inking, coloring, and labelling landscape designs.
I went off to college under the guise of getting an teaching degree, but planned to switch to majoring in art once I got my parents off my back. I didn't even get that far- I missed my job, thought long and hard about my options, and came back home, went to school for horticulture, and have pretty much stuck with that ever since.
The thing I like best about landscape design is that it combines art with nature. I hand render all of my designs, so I get to get somewhat artsy with it, but since rendering other's designs is what I did for 10 years, it's not as exciting now.
And now, what I really want to do is be a full time professional artist/crafter. I work very part time with a landscape company right now. I have my office set up at home so I can work on designs at 3 am if I want to. Depending on where you live, it's also a very seasonal job, but it works out great for crafting since I have Christmas time free for craft shows, and I also have weekends off for fairs in the summer. Actually, I totally make my own schedule.
I could go on for hours and hours about my job, schooling, the plants I like to use, projects I've done, etc...but I won't do that here! If you want to know more though, I'd love to help you (or anyone else) out. I take a lot of pride in being able to drive past places I have designed and see them thriving (or not thriving!) years later, and seeing how they change, it's very fulfilling.
What's NOT good about my job is that I hate it when someone wants to rip up something that's fine as it is just to keep up with the neighbors. Sometimes the customer wants to do things to their property that make me ashamed! My ideal customer is one who wants to add color to attract wildlife, or in some way enhance what they have. Luckily, I get a lot of that. I also have major issues with sprawl, and my environmental ethics have started getting in the way of my job enough to the point that I just won't do that type of thing anymore.
See, look how I continue to go on.
In closing, I just want to say that if something like this appeals to you, also look into landscape architecture. That's more of a city planning/commercial type of thing, and requires much more schooling than I had. Different companies specialize in different things, so if you wanted to be more of an environmental artist you could do that.