Did you e-file it? If you did not e-file it, don't worry about it. Unless you e-filed it or put it in an envelope and mailed it, it is as if it does not exist to the IRS. If it was e-filed and accepted--you cannot get it back.
If you get Social Security disability they use same the deposit information as the information used for your monthly benefit.
Social Security and Stimulus Payments
https://home.treasury.gov/news/press-releases/sm967
**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.**