Pruning Raspberries.

[rattle]

G'day everyone.
Have been recovering from an injury and have not been able to garden at all.
I'm now able to get out there and do a lot of catching up, but I don't know where to start.

My raspberries for instance, have started growing new leaves at random places and I'm wondering if it's o.k to cut back the really old wood and possibly trim some of the other stuff with growth on it.
A lot of plants need pruning, but I'm unsure if it's the wrong time to do it.

I'm rural to the north of Melbourne if that helps regarding current climate.

Thanks!