@SweetieJean - I thought about the SE tax also.
But on the Child Tax Credit, if you got the Advance, you don't have to return it at that income level. Similarly, no stimulus needs to be returned (line 30 can't be less than zero).
Also, at that income level, there is likely EITC credits.
I was stumped as well and wonder if the OP is looking at the wrong line which is why I asked on which line number he sees the $6165 - it may not be taxes owed - could be the refund!!!!.
