Canadian moving to the south

I am a dual citizen, american and canadian. I currently live in canada and am 18. I am wondering how I would move to the states to live with family/work for a couple of years?

I dont want to visit for just the 6 months so this is of no use to me, and I also know a little about the work visa's but all of those aren't long enough for my desired stay. What do I do in order to live there for a couple of years (since I am dual)?

If you are a US citizen, you don't need anything to move and live there. You are free to go and do, or not do, anything you wish.