Better check that W2. Check the amounts in box 1 & 2 and watch out for the decimal point in the right place. Sometimes they import wrong.
Click on Wages and Income tab at the top
Then your W2 should be listed at the top. Click on Edit, Review or Revisit
And check line 30 for the Stimulus. Did you get any of the first 2 Stimulus checks? If you are Single with a dependent under 17 you should get 1700 (1200+500) for the first one and 1200 (600+600) for the second one for a total of 2900.
So you could get a high refund. How much withholding in W2 box 2? You get all that back plus the Stimulus plus the Child Tax Credit plus the EIC earned income credit. So it could be right.