You're so damned wholesome Phoenix! I love it. I love the writing style and I love the self reflection. Don't make the mistake of believing that happiness and contentment are the same thing - they aren't. You might be happy to make $500 from your creativity, but that happiness will fade. You won't be content with $500 - but you can be content that the world gives you a small token of it's gratitude just for penning your thoughts.
I have found stoicism and walking the answer to my general malaise. Not necessarily in that order. We will all be little piles of dust in by the 22nd century and so the trick is to enjoy the small speck of creativity between two eternities of nothingness.
It's fun. Keep writing about it. Keep working on it - and this Penguin will keep reading about it :o)