Hello, i filed an electronic extension for my 2019 on turbotax but haven't received any notification if it was accepted. How do I confirm this?

You would have received an email from TurboTax if the e-filed extension was either accepted or rejected.  Look in your spam or junk mail folders on your email account.

no there's been nothing....what else can I do?

what day did you do it ?

approval is automatic if you filed before the deadline.