How To Add In A Wait Before The Sound Play Again?

Use a debounce.

This is simple. We're just going to make a bool variable, and if the variable is true, then we play the sound and make the variable false, wait a while, and make it true again.

Example,

local Debounce = true
script.Parent.Touched:connect(function()
	if Debounce then
		Debounce = false
		script.Parent.Sound:Play()
		wait(5)-- Wait As long as you want
		Deounce = true
	end
end)

Good Luck!

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