Could anybody help me add a cooldown into my client sided scipt?

local UserInputService = game:GetService("UserInputService")
local Player = game.Players.LocalPlayer
local Mouse = Player:GetMouse()
local debounce = false

local Keybind = script:WaitForChild("Keybind").Value

local BodyGyroTime = false

local AnimationsFolder = game.ReplicatedStorage.Animations

local HoldAnim = AnimationsFolder.Hold
local ReleaseAnim = AnimationsFolder.Release

local HoldAnimLoader
local ReleaseAnimLoader

local BG
local BP

UserInputService.InputBegan:Connect(function(Input, IsTyping)
	if not IsTyping then
		if Input.KeyCode == Enum.KeyCode[Keybind] then
				
		--- Forces
		BodyGyroTime = true
		
		HoldAnimLoader = Player.Character:WaitForChild("Humanoid"):LoadAnimation(HoldAnim)
		HoldAnimLoader:Play()
		
		
		
		BG = Instance.new("BodyGyro")
		BG.MaxTorque = Vector3.new(math.huge,math.huge,math.huge)
		BG.P = 15000
		BG.Name = "FireBallGyro"
		BG.CFrame = CFrame.new(Player.Character.HumanoidRootPart.Position, Mouse.Hit.Position)
		BG.Parent = Player.Character:FindFirstChild("HumanoidRootPart")
		
		BP = Instance.new("BodyPosition",Player.Character:WaitForChild("HumanoidRootPart"))
		BP.D = 1250
		BP.MaxForce = Vector3.new(math.huge,math.huge,math.huge)
		BP.P = 10000
		BP.Position = Player.Character:WaitForChild("HumanoidRootPart").Position + Vector3.new(0,0.1,0)
	    
	
		game.ReplicatedStorage.Flame:FireServer("FireBallHolding")
			
				
						
	     spawn(function()		
			while BodyGyroTime == true do
				   wait(0.01)
				   BG.CFrame = CFrame.new(Player.Character.HumanoidRootPart.Position, Mouse.Hit.Position)
			    end
			end)
		end
	end
end)

UserInputService.InputEnded:Connect(function(Input, IsTyping)
	if not IsTyping then
		if Input.KeyCode == Enum.KeyCode[Keybind] then
			HoldAnimLoader:Stop()
			
			ReleaseAnimLoader = Player.Character:WaitForChild("Humanoid"):LoadAnimation(ReleaseAnim)
			ReleaseAnimLoader:Play()
			wait(ReleaseAnimLoader.Length)
			
			game.ReplicatedStorage.Flame:FireServer("FireBallFired",Mouse.Hit.Position)
			BodyGyroTime = false
			local BGDestroy = Player.Character.HumanoidRootPart:WaitForChild("FireBallGyro")
			BGDestroy:Destroy()
			local BPDestroy = Player.Character.HumanoidRootPart:WaitForChild("BodyPosition")
			BPDestroy:Destroy()
		end
	end
end)