How Do You Make This Script Repeat Itself After The Fourth Click?

How do you make this script repeat itself after the forth click? What it does it stays the same at the forth click. By the way, what is a professional word to label 1 (local Inc = 1) instead of Inc?

local Inc = 1

script.Parent.MouseButton1Click:connect(function()
	if Inc == 1 then --First Click
		--Code
	elseif Inc == 2 then --Second Click
		--Code
	elseif Inc == 3 then --Third Click
		--Code
	elseif Inc == 4 then -- Fourth Click
		--Code
	end
	Inc = Inc + 1
end)

Thank you!