How do I shorten this coroutine?(Function inside another function)

I have seen lots of posts that say that a function inside another function is unorganized. Since I am an asker, I want to be able to have cleaner scripts so that I can ask for help.

This code (snicker) functions

Cyvicz(Civics) is my currency.

Code:

--Made by CamScripted, cleaned by [YourNameHere]
local staph = 0
coin = script.Parent
a = 0


local h = Instance.new("Hint", workspace);
local m = Instance.new("Message", workspace);
 
local spin = coroutine.wrap(function()
    repeat
coin.Rotation = Vector3.new( 0, a, 0)
wait(.01)
a = a+3
until staph == 1
end)
local coinage = coroutine.wrap(function()
coin.Touched:connect(function()
	for _,Player in pairs(game.Players:GetPlayers()) do
	    if Player:FindFirstChild("leaderstats") then
	        Player.leaderstats.Cyvicz.Value = Player.leaderstats.Cyvicz.Value + 10
			coin.Parent = game.Lighting
			break
	    end
	end
	end)
end)

 
spin()
coinage()

Well, coinage is pointless, as is spin.

Place the body of coinage above the body of spin and dont bother with the coroutines.