Potty training a boy

My son is 19 months old and is doing well with sitting on the potty to pee and poop. It’s just that when he pees he pees in the floor. Should I teach him to point his penis down or just buy the potty seat to put on the toilet? He’s scared to let go of the toilet seat if I do teach him to point it down. And daycare doesn’t have the training seats. The teacher said he peed on his clothes while sitting on the toilet today. They use big toilets. I don’t want to confuse him with how he goes pee at daycare vs home.

He just started peeing and pooing in the toilet. It’s only been a few days. He’s my fist boy so I’m new to this.