First of all, you must be wondering where to start and all. Well to begin with, before you even start deciding on your character. You must pick the Class which you would like to be. Now that you have your class, you must pick your Kekkei Genkai, most likely something that will benefit what you are aiming for in the RP. Now that you have your basics done, you can get started on your Profile, you must wait until your profile is approved to start RPing. Once your profile is approved, post it on your village's profile section, post on their academy (if you're a genin), and start RPing!!!