Voting began and none my themes ain't there

...But I don't really care about that; I just don't seem very enthused with this first round, and that worries me a little. There's not really any one theme that I like, and I know that isn't news to anyone.
Anyways, my (and I'd imagine other similarly less experienced entrant's) greatest fear entering this competition is not being able to make something you're proud of. I can imagine many ways to prevent this, like keeping a small scope for your entry and not being too experimental, among other things that I can't think of at the moment.
But if the worst happens, I don't exactly understand why one would submit an entry they clearly aren't proud of, apart from feedback and for having submitted something. Though I COULD understand that it would be better to submit something bad than not to submit anything at all. So my non-offense question is:
For those of you who HAVE submitted something you weren't proud of, is there anything in particular that you learned from the experience?
I'd be glad to see some answers; and that's not just me 'trying' to sound like I'm interested. I tend to check this site to see if I got any notifications, and it's (probably) wonderful when there are. Obviously you don't have to respond, I just wanted to say that I am genuine; right now, I don't get many notifications, and I'm aware that that's WAY better than having WAY too many!
Either way, have a great day everyone; and hopefully the least worst theme wins! Whichever that one is.