Dual citizen looking to move back to USA

I was born in the US and moved to B.C. when I was 7. I just turned 18 and I want to move in with my dad in Washington. I have a new US passport and I won't be bringing anything except clothes pretty much. Is there anything I need to do before I move or can I just get up and go?

Your a USC. All you need to do is move, nothing else.

You most likely don't have a problem, however if you worked and earned enough money to file a US tax return, you should clear that up first by filing those returns. Also, if you had a financial accounts that ever had an aggregrate value of $10,000 or more (RRSP, RESP, savings, etc.), you will also need to file IRS Form TD F 90-22.1.