Not sure how to file this year since 2020 is still not resolved

So, I filed early in 2020, got my refund.  But, had unemployment of around $6K.  Once the law changed, IRS was supposed to send additional refund automatically.  As of today, that still hasn't happened, even though I'm a single filer using the standard deduction.  Also, removing that unemployment amount from my taxes would have made me eligible for the 3rd stimulus payment.  So, guess my questions are:  what do I show as my AGI from last year on this year's return?  If I take off the unemployment amount, it won't match what was on my 2020 return.  Also, can I go ahead and claim the stimulus $$ if the IRS has not yet adjusted my income to eliminate the unemployment amount?  I don't want to go to IRS purgatory.  ðŸ™‚