I'd agree with MOR
Its not too late age wise
Kapiti is a good outfit for the commercial. I've done plenty of hours at Wellington Aero Club but that was mostly pleasure and PPL conversion.
It is very busy and regularly you would only fit in maybe 4-5 circuits in an hours flying compared to I dunno, 10 at kapiti.
The ATC at wellington are superb though so no need to be afraid of entering there.