How to add a cool-down to this script? - I'm really new to this

Hey guys, I'm REALLY new to scripting so this might be really easy for all you professionals out there, aha.

But, do you know how to add a cool-down to this simple script? It'd be really appreciated. <3

local plr = game.Players.LocalPlayer

script.Parent.MouseButton1Click:connect(function()

plr.Character.Humanoid.WalkSpeed = 25 -- your power up

plr.Character.Humanoid.JumpPower = 100 -- your power up

wait(5) -- after 5 sec back to V

plr.Character.Humanoid.WalkSpeed = 16 -- back to normal

plr.Character.Humanoid.JumpPower = 50 -- back to normal

end)

Here is the original script:

local plr = game.Players.LocalPlayer

script.Parent.MouseButton1Click:connect(function()

plr.Character.Humanoid.WalkSpeed = 25 -- your power up

plr.Character.Humanoid.JumpPower = 100 -- your power up

wait(5) -- after 5 sec back to V

plr.Character.Humanoid.WalkSpeed = 16 -- back to normal

plr.Character.Humanoid.JumpPower = 50 -- back to normal

end)

Try using this script:

Debounce = true

local plr = game.Players.LocalPlayer

script.Parent.MouseButton1Click:connect(function()
	if Debounce then
Debounce = false


plr.Character.Humanoid.WalkSpeed = 25 -- your power up

plr.Character.Humanoid.JumpPower = 100 -- your power up

wait(5) -- after 5 sec back to V

plr.Character.Humanoid.WalkSpeed = 16 -- back to normal

plr.Character.Humanoid.JumpPower = 50 -- back to normal
		Debounce = true
	end
end)

^ Hope that helps! :D