Hard work doesn't always equate to learning things. It is not a constant rate of skill increase. Sometimes people working hard stagnate. With luck and a variety of advice, someone without the natural +1 bonusses can pass someone who has it and is doing the same amount of work to improve. And since taste and skill are so nebulous, there will always be people of varied skill levels working in the market. I think it doesn't take any talent to make Dubstep music, but lo and behold, that's a thing people somehow make a living off of. All kinds of people with varying degrees of musical prowess make music and live off of music, and a great deal of them only got there by banging their heads against the wall.
There's glory in trying, as any Dwarf Fortress Player will tell you. You may end up with a shaggy dog story, but at least your story will be worth telling. You may accomplish nothing, but you tried, and ended up in a uniquely trying situation. This is a story you can attempt to tell to the world, or at least make a final stand in the midst of your failure. Where's the glory in doing the exact thing everyone else does? There's no point in that, you don't create anything new, you just give up what makes you happy so that another generation of people can not do their dreams because you're still not rich or connected enough. And then you're shitty at what you do for not having practiced it, and would have even less hope of doing what you want, where anyone can fail in at least an amusingly different way.
Everyone has their own spin on things, and their own worldview. Even cult members differ slightly. In the right medium, anyone can create or interpret something different. That's what art is.
If you really derive fulfillment from doing artsy shit, then yeah. Personally, raising a family would be a parasitic feeling for me. I do love my family and appreciate what they do, but the act of starting a whole nother branch isn't something I'd be able to do for fulfillment. I don't find endless adventure in average life, there isn't that much variety in it. I'd be glad to live comfortably, but I'd also be glad to live uncomfortably and have every day be a different dealio if it meant that I could write for a living. Someone facing tribulation doesn't fall into a routine, unless that tribulation is the routine itself. Someone fighting for their dream has their dreams to hold onto until the end. If I end up reproducing, it's either going to be a horrible accident, a false accusation, or something I do because I can do that without compromising the work I want to do.
You misunderstand me, I don't at all think I'll be a big writer, I'm not sure I want to be a big writer. The fact is, I want to be a writer, with a sizable audience, even as a part-time job. That's something I'm going to pursue no matter what. I don't want to be a grand figure, I want to contribute to something that fulfills me. I can keep trying and going or whatever, and have a job in something else to supplement it. If I can't make a living off of writing, I won't sweat it, because I'll have built a life where I'm financially okay to just keep trying. If botany goes, then odds are I'll probably find something else. If I don't, I'm willing to do desperate shit just for the hell of it, because why not? There's no other point for me, I don't have genes that need to be passed on, I don't have to overpopulate the world with along with the other people who gave up on being satisfied with themselves without other people. Quite honestly, the idea of quitting that in order to have kids is an idea that depresses the fuck out of me more than a dead-end job. And hell, if there is a natural skill that allows me to write things, it'd be evolutionarily beneficial to cull my line of inferior writing genes rather than fill the planet with more people that it doesn't need.
Although it's probably wise for Slashy to note that I'm going to be in a very different position in college, because colleges do offer degrees for plant jobs, and not for specialising in creative writing. Definitely make sure you can have a day job, but don't stop if it's something you want.