That's a really healthy perspective. When I'm trying to figure out why something didn't work, I prefer to go into detective mode. Unless I'm in a rush, or it's not the first, second, or third goof in a row. Then the only thing that gets altered is my personality! LOL
I like when people show their work on here and say "I'm really happy with how this one turned out" or "I had to fix /add/take away thus-and-such, but once I did, I'm glad I did." That kind of talk is inspiring to me. Or even, "I'm not sure I'd do this technique again, but I learned something." My mother always said you can learn something from any experience.