Can I file for advance using my last check stub

[xmasbaby0]

NO.   You need your W-2 to prepare a tax return.  Employers have until February 1 to issue W-2's.  Wait for your W-2 so you can prepare your return correctly.  The IRS will not be accepting 2020 returns until the end of January.   Even if you qualify for the advance loan, you cannot get the money until your return is accepted.

TurboTax will be offering a refund advance loan —but not until January.  And you do not get the money until the 2020 e-file has been ACCEPTED by the IRS.You also have to agree to receive your refund on the prepaid TurboTax Visa.

https://turbotax.intuit.com/refund-advance/