First of all, you could not have filed a 2018 tax return electronically last week. A 2018 tax return can only be filed using software installed on your own computer, not TurboTax online, and it can only be mailed, not filed electronically. And since the IRS is not processing mailEd tax returns at this time, your 2018 return will make no difference to your stimulus if you only filed recently. And nine days is probably too soon to expect the IRS to have processed your 2019 tax return.
First we have to clarify, exactly what did you do to file your 2018 and 2019 tax returns last week?