WHEN ARE YOU SUPPOSED TO WET SAND? AFTER EVERY COAT OR WHAT?

HEY GUYS WHEN ARE YOU SUPPOSED TO WET SAND? I AM GETTING READY TO PAINT MY NEW HOOD, AND JUST WONDERING IF YOUR SUPPOSED TO WET SAND THE PRIMER BEFORE YOU DO THE BASECOAT OR NOT? AND IF YOUR SUPPOSED TO WET SAND THE BASECOAT BEFORE YOU DO CLEARCOAT? ALSO I AM GOING TO PUT SOME BLACK STRIPES ON IT, SO IF YOU ARE SUPPOSED TO WET SAND THE BASE COAT BEFORE YOU DO CLEARCOAT SHOULD I DO THE BASECOAT AND STRIPES SEPERATLY OR JUST DO THEM ALL AT ONCE? AND I HAVE HEARD OF PEOPLE BAKING THE PAINT WITH HEAT LAMPS BEFORE IT IS COMPLETELY DRY, IS THIS RIGHT?