get into exercise and sport science (~ uai of 87), aim to achieve a credit average (atleast) and attempt to get into master of physiotherapy at the end of your 3 years. transfers from exss straight to physiotherapy MIGHT be possible, but would be a distinction average minimum in your first year. (not easy, first year exss is hard - its pretty much the same subjects as physio)
alternatively, health sciences may still have the gaurantee entry into graduate courses like they did this year, so if you did health science and finished with a credit average you recieve a definite spot into masters of physiotherapy.
keep in mind master of phys costs ~50k, csp places are very limited and extremely competitive