If I am filling single and I want to report my earnings today

I went to the casino and won taxable money I want to file single and I never filed married. I just want to file alone

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If you married, and not legally separated, Your choices are: Married Filing Jointly (MFJ) or Married Filing Separately (MFS). You may not use "Single" Filing status.

If you have a child, living with you and have lived apart from your spouse, the full last half of the year, you may be able to use Head of Household filing status.