As long as you qualify, you can still receive your second stimulus amount. TurboTax has established a procedure for taxpayers with this type of situation.
Please see the TurboTax Help article I've already claimed the Recovery Rebate Credit. How can I review and update my 2020 tax return? or I didn't claim the Recovery Rebate Credit. How do I review and update my 2020 tax return?, as appropriate, for guidance.
If you haven’t received all of your stimulus yet, you can claim it in your 2020 tax refund.