Tax prepare experts ??

I need help with my taxes I’m doing them on my own this year with turbo tax . I let this guy prepare them for me last year . I didn’t look over the paper work, because everyone said he knew how to do them . I’m looking at it now and confused . I’m legally married but we been separated for so long we don’t do them together . We haven’t got divorced after 8 yrs. In my statues he put me single last year as head of household which I’m but not single . Any help please . I keep getting this question and idk what to put .