Can anyone help me make this tiny script FE, tried a few things but didn't work?

I tried to make it FE like normally but it just didn't work maybe I made a stupid mistake? my original version is here:

local ContextActionService = game:GetService("ContextActionService")

local player = game.Players.LocalPlayer
local mouse = player:GetMouse()


local debounce = false

local function pressedXHandler()
    if debounce then return end
    debounce = true 
    local hitCharacter = mouse.Target.Parent
    local hitHumanoid = hitCharacter:FindFirstChildWhichIsA("Humanoid")
    if hitHumanoid then

        hitHumanoid:TakeDamage(25)
hitCharacter.Humanoid.Sit = true
local Push = Instance.new("BodyVelocity", hitCharacter.Torso)
Push.Velocity = hitCharacter.Torso.CFrame.lookVector * -63
Push.MaxForce = Vector3.new(math.huge, math.huge, math.huge)

local Distance = Instance.new("BodyPosition", hitCharacter.Torso)
Distance.MaxForce = Vector3.new(0, 0, 2)
Distance.Position = Vector3.new(0, hitCharacter.CFrame.p.Y + 15, 0)

Push:Destroy()
Distance:Destroy()


        wait(5)
        hitCharacter.Humanoid.Sit = false
end 
    wait(20) 
    debounce = false 
end

ContextActionService:BindAction("nameOfAction", pressedXHandler, false, Enum.KeyCode.X)