You are confused about the tax year. No one has prepared or filed a 2024 tax return. That will not happen until next year, when tax year 2024 is over. People are currently preparing and filling tax returns for 2023, the tax year that just ended on December 31, 2023.
If you mailed your original state return, you cannot e-file an amended return. It sounds like you are also confused about the amending process.
To amend only a state return:
https://ttlc.intuit.com/questions/2824532-i-need-to-amend-my-state-return
https://ttlc.intuit.com/questions/3827521-can-i-efile-an-amended-state-return
**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.**
