The $1400 per person EIP is calculated on your 2021 tax return. If you qualify for more than you received in advance, the extra will be added to your refund. If you qualify for less, you don't have to repay it. (It was always a credit on the 2021 return, but with a requirement for the IRS to make advance estimated payments if they could.)
Separately, you will also qualify for the $3000 (or $3600) child tax credit, which was temporarily increased from the normal $2000 amount. If you received advance payments, they will count against the total you are allowed based on your income and family situation. Your expected AGI is slightly below the trigger point for the phase out, so you should qualify for the full amount.
