[GUI Rotation] Image Label. No Output :/ Please Help?[Un - Answered]

Hello, And Thanks For Reading! Im trying to make a ImageLabel Rotate Back and Forth! Here Is my script! Please Help!

while true do
	wait(0.01) 
	script.Parent.Rotation = script.Parent.Rotation +1
	if script.Parent.Rotation == 10 then 
		script.Parent.Rotation = script.Parent.Rotation -1
		if script.Parent.Rotation == -10 then 
			script.Parent.Rotation = script.Parent.Rotation +1
		end
	end
end