In addition to what Scylla already said, I have noticed that Canada (more than Europe) only lets people in who can really contribute something to the country and economy. Unlike Europe, where all borders are open and you can literally just walk in and ask for a residence permit, over here there are only immigration programs for educated professionals and young people (permanent residency) or you need to land a valid job offer supported by LMIA before you come to Canada (temporary work permits).
Because you are already fairly old, you form a risk in terms of healthcare. The reason the immigration system awards you more points when you are young is because young people most likely do not need any healthcare in the near future. You will also retire soon which means you will not work and contribute to the economy. And if you don't live here yet, you will need to bring your current pension money from your home country with you somehow since you will have none here.
So before you even think of proceeding with your immigration plans to Canada, ask yourself this question: "Why would Canada let me in and what can I contribute to the country that makes me a reasonable candidate?"
If you cannot answer that question for yourself, then Canada's immigration services certainly cannot either.
I don't want to sound rude, but these are my past experiences with immigrations and immigration lawyers who told me a lot about how the system works here.