I submitted my tax return for last year and I’ve got this feeling we didn’t do something correctly. Is there a way to have a “second look” by a turbo tax professional?

[xmasbaby0]

You can upgrade to TurboTax Live for a review of your 2020 tax return, but not to look at a prior year return.  Are you asking about having someone look at your 2020 ("last year") return?    I am not entirely sure if you can get them to look at even a 2020 return that you already e-filed, but you can check with them.

https://ttlc.intuit.com/community/choosing-a-product/help/how-do-i-get-turbotax-live/00/27305

[fanfare]

Always print a copy of your completed tax return for your records, and review it carefully before e-Filing.
You will need it if you are audited by the IRS, or to amend if a TurboTax update changes your return or for any other reason,

AND, to find your AGI next year.

After you file, it's too late.