I can't help but chuckle every time I hear that

If you feel you're outgrowing a motorcycle chances are you're just not revving it hard enough.
Still, congratulations on passing, make the most of this mild weather whilst we still have it, if you've got a reputable workshop near you I'd also suggest taking the ZX7 in for a suspension setup, maybe even consider an overhaul if you're feeling plush. Just ensure you are honest with what you ask for, a twitchy bike setup for track riding isn't confidence inspiring on greasy bumpy roads.