@ Chandlercoco Hiya! It depends on what you want out of posting your story. If you just want to give it a try and don't care how many readers you get, then there are no do's and don'ts (except of course the standard Wattpad rules). However, if you're trying to get as many readers as you can, then you story will have to be polished, well edited and it'll need a nice cover.
I hope this helps, but if you have any more specific questions, don't hesitate to pm me :)