Thank you!
For the POF, I submitted my bank certificates. Total of 4 different banks from both my own and wife's. For the amount, we declared CAD$50,000: 1 year tuition - $23,000, 1 year expenses - $20,000, extra money $7,000.
As to how to convince the VO that I'm going back after, I just mentioned that my parents and siblings are in Manila and I also still have a house in Manila.