Please help me by correcting these sentences. It's been three months of me living here. [informal] I have lived here [for] three months. [standard] I have been/lived here since August. I have been/lived in this city [for] three months [now]. It's been a year of me seeing her. [informal] I have been dating/going out with/seeing her for a year. It's been a year having seen her. [unclear] It’s been a year that I’ve been seeing her.

Please help me correct these sentence. It's been 3 months me living here. I have been here since August. I have been in this city for 3 months now. It's been a year seeing her. / It's been a year having seen her. (Difference between both the sentence