No problem! <33
She can be any age you’d like, as long as you write the appropriate history to support it! I don’t think there are any played second years currently so if you’d like her to have some played classmates you could bump her up to Third Year. ^^ Totally up to you though!
If you want to be a Second Year as originally scheduled, then you’ll only need to update her age and add the history for last term (I PMed you the whole timeline of events) as part of First Year, as well as what’s happened so far this term (we’re in January playtime now) for Second Year.
For her to be aThird Year then you’d need to write another paragraph of history for First Year and shift last term’s events as having happened during her Second Year, and then what’s happened so far this term for Third. ^^