Very good, just remember that you are slamming your palm not closed first, otherwise you'd most likely fracture your knuckles even if aided by lightning your hand would eventually make physical contact with the ground.
I want you to start focusing your lightning chakra around you hands until you see lightning crackle. You will then manipulate that lightning and release a greater volume of it outwards, shape manipulating it into a defensive lightning energy wall of sorts that stands in front of you as.( Raiton no Heki ) – Lightning Release Wall
Type: Supplementary, Defence
Chakra cost: 15
Damage points: N/A
Description: The user manipulates their chakra and then releases it in front of them whilst holding their hands out and they generate a wall of lightning energy that can defend against certain techniques. The user can use this defence to shock enemy targets who attempt close range combat and deliver a small electrical shock that can temporarily reduce their physical capabilities.