changing filing status from MFJ

For tax year 2024, I filed my return as Married Filing Jointly.  Can I submit a 2024 amendment to change it to Head of Household (two kids under 5)?  My wife was living in another country in 2024, but I added her because she as a SSN.  I also didn't include her foreign income in 2024, was I supposed to include those even though she wasn't living in the US?