Some of you might already know, but I’m another teenager trying to rename myself I have a beginning list in the works right now, that you can view here. A lot of these names so far probably qualify as “yupster” - I like classics that are slightly quirky, names with literary ties, names that pay tribute to (dork alert!) [name]Harry[/name] [name]Potter[/name], and that will fit any given age.
Of your current list of considerations, I think [name]Charlotte[/name] and [name]Sophie[/name] would be the easiest to merge into. My personal favourites from your list however, are [name]Lily[/name], [name]Hermione[/name] and [name]Valentina[/name].
I think it depends on what your name, personality and heritage actually is really, as moving into a more obscure name such as [name]Hermione[/name], [name]Nerissa[/name] or [name]Valentina[/name] would prove a little easier to do if you already had quite an obscure name, an upbeat personality and a bit of an ‘exotic’ family background.
I like [name]Hermione[/name], [name]Helena[/name], [name]Esme[/name], [name]Cordelia[/name] & [name]Emmeline[/name].
[name]Cordelia[/name] and [name]Emmeline[/name] are names i’d imagine on a quiet, artistic bookworm, whereas the other three are more of an upbeat, studious and loud personality.
From your current list I like [name]Henrietta[/name], [name]Charlotte[/name], [name]Hermione[/name], [name]Helena[/name], [name]Alice[/name], [name]Valentina[/name] and [name]Cordelia[/name].
I feel as though [name]Charlotte[/name], [name]Tessa[/name], [name]Lily[/name], [name]Helena[/name], [name]Sophie[/name], [name]Alice[/name], [name]Nerissa[/name], [name]Gemma[/name] and [name]Emmeline[/name] may be easier to transition into than the others however.