How could i add a cooldown GUI to my Ability?

Hello, im new to scripting and i'd like to ask how im supposed to add a cooldown GUI to this script. Btw the cooldown time is set to 6 seconds.

--Made By 123Marooxd123
local lleg = script.Parent:FindFirstChild("Left Leg")
local rleg = script.Parent:FindFirstChild("Right Leg")
local db = true
local UIS = game:GetService("UserInputService")
local character = script.Parent
local humanoid = character:WaitForChild("Humanoid")
local DropAnim= Instance.new("Animation")
DropAnim.AnimationId = "rbxassetid://9661495094"

local dmg = false
local CanDropkick = false
local Keybind = Enum.KeyCode.E
local LeftLeg = game.Players.LocalPlayer.Character["Left Leg"]
local RightLeg = game.Players.LocalPlayer.Character["Right Leg"]

local topspeed = 20
character.Humanoid.Running:Connect(function(speed)
	if speed > topspeed then
		CanDropkick = true
		dmg = true
	else if speed < topspeed then
			CanDropkick = false
			dmg = false
		end
	end
end)



function dmg(hit)
	if not CanDropkick then return end
	if hit.Parent ~= nil then
		local hum = hit.Parent:findFirstChild("Humanoid")
		if hum ~= nil then
			hum.Health = hum.Health -10
		end
	end
end

lleg.Touched:connect(dmg)
rleg.Touched:connect(dmg)

UIS.InputBegan:Connect(function(input,gameprocessed)
	if gameprocessed then return end
	if not CanDropkick then return end
	if not dmg then return end
	if not db then return end
	if input.KeyCode == Keybind then
		CanDropkick = false
		dmg = true
		db = false
		
		
		
		
		local playAnim = character.Humanoid:LoadAnimation(DropAnim)

		playAnim:Play()
	local drop = Instance.new("BodyVelocity")
	drop.MaxForce = Vector3.new (1,0,1) *30000
	drop.Velocity = character.HumanoidRootPart.CFrame.lookVector * 85
	drop.Parent = character.HumanoidRootPart

		for count = 1, 8 do
	wait(0.13)
	drop.Velocity*= 0.5
		end
		
	playAnim:Stop()
	drop:Destroy()
		CanDropkick = true
		wait(6)
		dmg = false
		db = true
		end
	end)

Hello!

I believe the answer is very simple. Every script has a property called "Disabled". This means that the script can not start running, but still finishes out whatever code has already been started. This is very helpful for cooldown scripts.

At the beginning of each function you have, add one line that says:

script.Disabled = true

Then, at the bottom of each function, add this:

script.Disabled = false

Here is a example of the first function, but remember that you need to do this to all of your functions.

function dmg(hit)
    script.Disabled = true -- Shuts the Script off
    if not CanDropkick then return end
    if hit.Parent ~= nil then
        local hum = hit.Parent:findFirstChild("Humanoid")
        if hum ~= nil then
            hum.Health = hum.Health -10
        end
    end
   wait(6) -- cooldown time
   script.Disabled = false -- Turns the script back on
end

I hope this helps! Let me know if you run into any problems or have any further questions! :)

~Amanda314159