How do I stop this from repeating damage? This Is a tool Btw

cd = false	

anim = script.Parent.Parent.Humanoid:LoadAnimation(script.Parent.Animation)

script.Parent.Activated:Connect(function()
	if cd == false then
		
	print("OVERDRIVE")
		script.Parent.OverDrive.Playing = true
		cd = true
		anim:Play()
		script.Parent.Parent.HumanoidRootPart.Anchored = true
		script.Parent.Parent.HumanoidRootPart.Touched:Connect(function(touch)
			if touch.Parent:FindFirstChild("Humanoid") then
				
			
					touch.Parent.Humanoid:TakeDamage(30)
					
				
				
				
				
				
			end
		end)
			
	
		wait(6)
		script.Parent.Parent.HumanoidRootPart.Anchored = false
		cd = false
		
		end
end)