I currently live in Canada right now. I am going to the US next week but I am a dual citizen, Canada and US. How do I exit Canada and enter the US?
There are no exit procedures for either country.
As a dual citizen you should have passports for both countries. You should use your American passport to fly to the US and to present at US border control. You should use your Canadian passport to fly to Canada and to present at Canadian border control.
Some will say that you don't need both passports, and it's true that neither country can refuse you entry, but the onus will be on you to prove citizenship. A passport is the best proof of this. You won't be denied entry once your citizenship is established, but if you have no passport for that nationality, there might be delays while your citizenship is verified. Note that a birth certificate is not standalone proof of citizenship, as citizenship can be surrendered.