I would 'second' the suggestion of going to Northam.
Its only an hour's pleasant drive or so, depending on which part of Perth you reside in.
Nice atmosphere, better weather, NO circuit 'waiting time' = more actual flying per hour of aircraft time, you take-off and, as SOON AS your wheels leave the ground you are IN the 'training area' = NIL 'transit time'....and NIL 'Landing FEES'.
IF you are committed to the Perth area, you could also get most of the above by talking to RACWA at JT, but learning at Murrayfield near Mandurah....also NIL Landing FEES....and its also a 'pleasant drive'...
JT Landing fees = $24.50 or so for each full stop ldg (C-152)
= $ 4.10 each Touch & go.....
i.e. When doing your circuit training, 6 circuits plus your full stop landing
= $49.10.....for what..??
'Rotsa ruck', whichever you decide......
Cheers