It is taking the IRS a very long time -- often more than six months --- to process mailed returns. Unless you used a mailing service to track it you will not know when the IRS received it. They do not post information about 2019 returns on the refund site--only 2020. So really all you can do is wait.
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
