I’m a [name_f]Molly[/name_f], just [name_f]Molly[/name_f] though. I was named after my grandma who was named [name_f]Mary[/name_f]. [name_f]Mary[/name_f] and [name_f]Margaret[/name_f] are definitely the most common full names. My name is [name_f]Molly[/name_f] [name_f]Katherine[/name_f], so I liked that suggestion from another commenter to go by a double name ([name_f]Molly[/name_f] [name_f]Kate[/name_f]). I used to insist on being called [name_f]Molly[/name_f] Rine (end of [name_f]Katherine[/name_f]) for a short time when I was a kid. What about something like [name_f]Maureen[/name_f] [name_f]Lilly[/name_f] ([name_u]Mo[/name_u] sound +lly). Otherwise, I haven’t actually met anyone that goes by [name_f]Molly[/name_f] as a NN, even though I know back in the day a lot of people did.
I am also a [name_f]Molly[/name_f] just [name_f]Molly[/name_f] and people of my grandparents generation were the only ones who asked if my full name was [name_f]Margaret[/name_f]. And I was only asked that once or twice. I am a [name_f]Molly[/name_f] [name_f]Marie[/name_f]. Good luck!