And if your in Vic, you can do navs with lots of short legs aid to aid / approach to approach etc and then mix it up with a longer leg NAV if you want. The short legs are good to keep you under pressure.
When you start, Getting your process in order can be the biggest challenge and staying in front of the aircraft. Also your head can go a bit mushy after a couple of hours under the hood particularly at this time of the year with thermals and heat etc. 2.5 hours a pop may well do you until you build a bit more experience.
Do heaps of extra sim if you can get into one cheap.
Use the little IFR nav trainers as well available for desktop or tablet etc.
Definitely get into real IMC if you can find it..
Have fun.. flying IFR is the ducks nuts..