Single is not the same as Head of Household, nor the same as Married Filing Separately.
That being said, Married Filing Joint can go either way, depending upon how much income your spouse had. Did your amended returns end up with you owing taxes? If so, you can be assessed interest and possibly penalties. Did you use TT to amend?
But, as indicated above, someone with your screen name asked about student loans,. so please clarify.
And TT is not licensed for use by paid tax preparers, so your preparer was in violation if she used TT.
