There's a pivotal part in 13 Going on 30, when Jenna is talking to her mom over breakfast (chocolate chip pancakes). She aks her mom about mistakes; if she regrets the mistakes she's made and if she wishes she could go back. Her mom thinks for a moment, then looks at Jenna and tells her genuinely that no, she wouldn't go back or change them, and she didn't regret them, because she wouldn't have learned valuable lessons had it not been for mistakes she had made.
Not that mistakes are a good, fun thing that we should all go out and become acquainted with, but we can also use them to our advantage. When we make mistakes, we have two options. One, we can get upset, get frustrated, get angry and more than likely make that same mistake again. Or, two, we can get up, look around, realize what we've done wrong, decide to change it, and then emerge just a bit wiser than before we made the mistake.
When I gave my life to Christ, He in turn gave me the promise of guiding and directing my life despite the sins and mistakes I make daily. Thank goodness I have a merciful God; otherwise I would be in a lot of trouble. I fail so often. I fall short of the life I am called to by the Lord so many times each day. What a blessing that my God understands that, and loves me despite my faults.
Am I mistaken? I like to believe that I am. I make mistakes and God takes them and makes them a part of His perfect plan. Mistakes + Takes + Makes = Mistaken.