Don't worry about missing out on the commercial world. Everybody I know in it wishes to be just an artist. I myself am working hard for the day when I don't have to gnaw on the rat.
Regret? Worthless. Only homo sapien thinks past time is worth something in the present or a possible future. You have the knowledge of the experience, other than that it doesn't exist, so get on with now. Take a lesson from our animal bretheren.
Last- We always work to please ourselves. Even the most selfless charitable person in the world is self absorbed in that respect. We do what pleases us, or what our little minds whip us in to doing, to please that mean little judgemental mind. That's the mind that concepts "regret".
Have a cup. Suffer beauty. Suffer some thing as you have never seen it.
You're no dummy Alden. Knock my socks off, if it pleases you.