Did you mail it or e-file the 1040X? If you filed it by mail then you are the only one who knows when you mailed it---unless you used a mailing service that tracked it and you have a receipt showing the date you sent it. If you e-filed it then you should have an email that shows when you sent the amended return---the email will tell you if the return was accepted or rejected.
Even during “normal” times it takes about four months for the IRS to process an amended return. During the pandemic and due to the severe backlog at the IRS it is taking much longer—six months or more for many amended returns. Do not expect quick results from amending. When the IRS issues a refund for an amended return it will be by check. They do not make direct deposits for refunds for amended returns. You can watch for information here:
https://www.irs.gov/Filing/Individuals/Amended-Returns-(Form-1040-X)/Wheres-My-Amended-Return-1
**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.**