Originally Posted by Jodie
high perfectionist streak
You may have read this elsewhere on the forums...

Perfectionistic tendencies may be a sign of developing a fixed mindset rather than a growth mindset. One aspect or application is that gifted kids may stop taking appropriate risks in order to always be "right" or always be "smart" or never be "wrong", and this may work against them. The concept is nicely summarized in these youtube videos:
Ashley Merryman & Po Bronson: The Myth of Praise (link-
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Teaching a Growth Mindset (link-
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Parents may wish to read the book Mindset by Carol Dweck for tips on promoting a growth mindset.

A book which seems to understand perfectionism very well and which many find supportive is What To Do When Good Enough Isn't Good Enough. Another book you might like is Perfectionism: What's Bad About Being Too Good. While insightful, these are written gently for kids, in a style that is fun and engaging. With any of these books it may be wise for a parent to pre-read and decide if it seems to be a helpful tool to use in guiding their child.

Procrastination can be closely related to perfectionism.

A child considering "worst case scenario" and finding various work-arounds to keep moving forward may in some cases help reduce anxiety and add an element of self-confidence, even a sense of looking forward to taking on the challenge.

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She is having problems at school refusing to do work, selecting the least amount of work possible, behavior regression, and just generally checking out. She tells me she is purposely working to match the other kids in her class. She is very well liked by the other students.
You may wish to read all you can about underachievement, and successful approaches to advocacy, to acquire foundational knowledge for negotiating with the school system throughout your child's educational journey.