http://www.learning-theories.com/self-theories-dweck.htmlRead about incremental theory to battle your learned helplessness you got from having an entity theory of intelligence. (link above). Then get to work challenging yourself. Wildly innaccurate mistakes means you're learning something new. Great job!
If you haven't read about imposter syndrome, here it is:
It's fairly common in highly capable people.
http://www.hoagiesgifted.org/imposter.htmIt comes from a poor fit in school. Here's more along those lines.
http://www.portage.k12.in.us/cms/li...685/pdfs/April/Whatachilddoesntlearn.pdfWhatever you think you've lost is only on the back burner while you do something else. It's all still in there. You know many of us found these things about how giftedness is believed to work after we had our children. You're prodigiously finding your metacognition.