Deductions & credits

Thank you; very clear answers.
You're marked "Level 12" which presumably means you've answered a lot of queries over the years. 
May I ask if you are a tax professional, or merely a well-versed layperson?

It doesn't affect the taxes I owe for 2020, but it apparently will affect the amount of the next stimulus check I receive. If I can just let it ride and fix it later, that's fine, too. 

Edward