You 'didn't want to chance it'? Chance what? It's an 8u softball game, or did you not realize that at the time? Even though all the girls who want to try should get a chance at that age, you had set up an expectation that your 3rd pitcher would go in anytime you got to the 3rd inning and then you did not do that.
Anyone caught up in winning 8u ball games should not be coaching 8u. The parents' actions are inexcusable, but the same applies to you.
You can only learn from your mistake if you recognize that you made a mistake.
The girls in general were down because we hadn't won a game at all in the season at that point. We had a chance to win it and I felt the girls needed that so they didn't give up. There were two of them talking about they don't know why they practice because they don't win anyways. I did tell them it's about learning right now and eventually you will win. We did end up winning that game and the girls spirits were lifted. I felt I did what was best for my team.