My sister is a Canadian citizen. Can I immigrate directly?

Yes, but there is only one way, that is, let your sister vouch for your parents first (your sister is your own sister, then you must be your own sister, and the rest is hopeless). After your parents go, I can vouch for you, but you must be studying, that is, you must never go to work. If you graduate from college, you must be studying, so you can ask your parents to vouch for you and your parents can vouch for your property.