God did not make a mistake in making me. He knew exactly how to carefully form just the type of person He wanted to make this time. He was carefully preparing for the day everyone would see just what He had been up to.
That is not the end of the story. I may be born physically, but God calls us to be born spiritually, too. John chapter 3 says we need both, and goes on to say we can get this life by believing in Jesus Christ.
Now God is working on another aspect of forming me. One day, He will finish; one day He will reveal His mighty handiwork in this area, too. (Romans 8:18)