I'm pretty confident that any creative field that is not tied to a corporate effort--and I say that without any judgement on such things--is a significant uphill battle. If you're interested in more structured creative professions where you are not independent, then you're outlook is far brighter, but still brutal. Everyone idealizes the creative world, and it draws millions of people. The video game industry is probably emblematic. It's a tiny, insular industry and almost every guy between the ages of 14 and 40 would want to work in it. Doesn't matter that it has as much drudgery as anywhere else. It's alluring because it's creative. While you have a more defined path to a corporate creative job, you're still bumping shoulders with hordes of likeminded people--some more talented, some less.
It's a whole new world if you're talking about independent creative professions. Regardless of talent, potential, or work ethic, almost EVERYONE wants to make a living on their own creative projects. It's natural. Mechanisms rise to meet the demand for self publishing--Amazon, Steam, Tapas, etc--which simultaneously make it easier than ever to make things and harder than ever to get noticed. You've no doubt heard the oft stated claim, which is still hard to believe unless you think about it: big budget movies, games, and shows allocate close to half of their funds towards marketing and publicity.
We're in a market of convenience. It has never been a more convenient market for consumers. You can have whatever you want, and in the creative world, it's a good bet that it's free. Money is one thing, but now we're dealing in the ultimate finite resource: time. With so much media at your disposal--a near infinite selection from a near infinite number of vendors--you are discouraged from spending too much time on any one thing. You give a few seconds of your time in which to hook you, and then you move on. Why wouldn't you? There's so much out there. The optimal play is to scan for hooks.
So with any creative effort, you're fighting many different battles. First, you have to separate yourself from the people who just can't produce quality work. Then, you have to fight your way to the top of the decent hobbyists. Then, you need to break away from the aspiring career creators. And THEN you have to compete with the actual content creators. That's just the fight for relevance. It's a mess.
In comparison, a 9-5 job is often and comparably consistent, probably paying a living wage, and safe/calm. The competition to get an office job is fierce in its own right. The creative world adds ego and neurotic personalities to the mix.