I'm new here, where should I start??

Hello Tamazusa! Well, you started right by going to the Introductions board to introduce yourself. It'd be good if you went to the Main Board first and read the "F.A.Q" thread and the "A little description of the boards, please read before posting anything" thread to prevent making avoidable mistakes. Other than that, you can do anything you want like participating in the missions on Main, going through the other boards, or going to the chat. Remember that we're not a fansite. Welcome to the Dollars!