I also wanted to be a physiotherapist but did not achieve the required year 12 marks. So I completed a bachelor of nursing (in Australia), worked for a couple of years and then reapplied for physio. My nursing marks were high enough to get me in. I studied both degrees at the same uni which was helpful as even though I had to do the full 4 year physio program I received credits for a number of my subjects. It also enabled me to work in my holidays and pay my way through the course. Keep trying and will you make it eventually!