I'm trying to amend my 2021 federal return and not my state, but I cant seem to do it without trying to do my state as well, can someone help me?

[MichelleLO]

Even though any changes you make to amend your federal return will automatically transfer over to your state return, you should be able to select to e-file your amended federal return only. 

Most states do not allow you to e-file an amended state return, therefore, if you are provided mail-in instructions for the state return, you can disregard them.  To help determine if your state allows e-file, please see this help article:  Can I e-file my amended state return?