to the OP..I was searching for some hill stuff today on my way down to freo & want to suggest a few places..

Instead of riding all of Curtin Ave, cross at the Grant Street ped crossing (turn immediately left up to the first roundabout & keep following the road) and there are nice hills there to play on.

If you're near Point Walter, do Carrol road (instead of veering left when you're along the strand?) & all the hills near it.

Don't just do them once, go up & down as many times as possible. Play with your gears, get out of the saddle, stay in the saddle, etc.