Don't worry, it can all be resolved. If you receive more in your refund than you should there will be a fix. Most likely, there will be a matchup on your return with the Stimulus program and it will show that the 2nd Stimulus was paid and your refund amount will be adjusted..
There will be a provision to handle this situation. Just check back with TurboTax if you receive too much refund and we will guide you.