Any help is appreciated #3DPrinting

I want to start this off by saying i will be getting a Anycubic Kobra S1 printer. And it will be my first 3D printer. and i have no previous experience with 3D printing. I will be using either Orca Slicer or Anycubic Slicer next. i need to know if there are any basic setting i will need to change. i will be using PLA filament since it seems to be the easiest and somewhat cheaper option. I want to print helmets and stuff.