My damage script dont work,this script will be in the arms and legs of a player,what i did wrong?

do this:

local debounce = false 
local HealthLoss = 14

function OnTouched(Part) 
    if script.Parent.Parent.Name ~= Part.Parent.Name then
        if Part.Parent ~= nil then 
            if debounce == false and Part.Parent:FindFirstChild("Humanoid") ~= nil then 
                debounce = true 
                Part.Parent.Humanoid:TakeDamage(HealthLoss) 
                wait(0.2) 
                debounce = false
            end
        end
    end
end
script.Parent.Touched:Connect(OnTouched)

here's some errors i'm pointing out:

• you missed a few ends
• :connect and :findFirstChild are deprecated, use :Connect and :FindFirstChild instead
• try understanding a bit more the if things

hope this helped

It would likely be more efficient to put the script inside of the actual part that will be touched instead of the player, which I will explain and write here:

local damage = 14 --change this number if you want them to be damaged more
debounce = false
function damage(h)
if h.Parent.Name ~= "darkzerobits" and debounce = false -- if the person who touches the block isnt equal to the owners name which i assume is you
and h.Parent:FindFirstChild("Humanoid") then --check if this is an actual player, sometimes the part can touch the floor or something and cause an error if this line isnt in
debounce = true
h.Parent.Humanoid.Health = h.Parent.Humanoid.Health - damage --damage the player by subtracting their current health from the damage number we set
wait(3)
debounce = false
end
end
script.Parent.Touched:connect(damage)

EDIT: You may have noticed that there is a "debounce" thing inside of the script. If you don't know, that's simply just to prevent the script from damaging the character too much, as sometimes one touch can translate to 5 touches, for example. Debounce basically only allows one touch out of those 5 touches to go through, meaning that the result will only occur one time with that one touch.