Question: How do I correctly put the letters onto the sign?
Option 0: Print on a laser printer and cover the reverse side with chalk.Then  lay it down on a blackboard and trace over the letters allowing the chalk ti imprint on the signs surface. Use these imprints as a stencil.
Option 1: Buy a stencil online and use it to outline the letters on the sign. Paint the letters white using a small paint brush.
Answer: 0