How old are you? Go aggressive and take risks when young.
Agree, especially since the OP is living at home and doesn't have a mortgage to support as well (can change your perspective on things).
One thing I learnt from Nathan Birch when I spoke with him in 2008 was at that point he didn't have a PPoR to draw equity out of for deposits etc. He said he was comfortable with this as it made the investments do their job and increase in value so he could keep pulling the equity out of them to recycle and go again.