You were answered on your prior post for the same subject here - https://ttlc.intuit.com/community/taxes/discussion/claiming-head-of-household-without-a-dependent/00...
If you do not have a dependent and you are not married then you have to file as Single. Just because you maintain the household does not mean you are eligible HOH filing status. You Must have a qualifying person as a dependent.
See this TurboTax support FAQ for Head of Household - https://ttlc.intuit.com/turbotax-support/en-us/help-article/tax-filing-status/qualify-head-household...
