I wrote a short instrumental piece with no regard to music theory--I didn't even give it a set time signature--last week and sent it to a friend of mine, who really seemed to like it. at first, I thought that was just their way of being supportive, but I later sent it to someone  who actually knows music theory, and they also seemed to like it. I've tried writing pieces since then, and I've written a couple, but they're nowhere near the length and complexity of my first one, which wasn't very long or complex to begin with. my question is this: do you ever fear that the latest song you wrote was just based on dumb luck and might be the last good one?
no