RE: Do I need to trade her in?
if that is your first board and you have it since just a few months, probably you did not outgrow it yet. IMvvvHO, when you really need to change, you know it and you know exactly what you want.
Agree with o2bnme, at times it takes years to an average guy to understand how his new board (or sails!) works. This is more true with specialistic boards (fast slalom, wave) but anyhow applies to anyone who does not sail much often.