Get your taxes done using TurboTax

There has not been a 4th stimulus yet.  It was asking if you got the 3rd Stimulus.  You should have said  yes and entered the amount you got, probably 1,400.   If you had 1400 on line 30 you tried to get it again.   You should have seen this screen. 

Then  you would get this screen. to enter the amount you already got.