SOLVED. Woman starts reading book and turns out the plot is about her past. Author is only by initials, must be old friend, returns home

[Janna]

, the author is only by initials and she has to return to her hometown where she hasn't been for many years, in order to find an old friend who is the only one who can be the author since no one else knows about that story. Found this on a recommended books list during 2022, with other "new" books so think it must have been published during the last couple of years.

[Janna]

Found it! Renee Carlino, Swear on this life