Datastore not saving or loading?

My datastore isnt working. It's not giving me any errors or prints in the output. What is going on?

local dataStoreService = game:GetService("DataStoreService")
local myDataStore = dataStoreService:GetDataStore("NewDataStore1")

game.Players.PlayerAdded:Connect(function(player)
	local leaderstats = Instance.new("Folder")
	leaderstats.Name = "leaderstats"
	leaderstats.Parent = player

	local Cash = Instance.new("IntValue")
	Cash.Name = "Cash"
	Cash.Parent = leaderstats
	Cash.Value = 0

	local speed = Instance.new("IntValue")
	speed.Name = "TopSpeed"
	speed.Parent = leaderstats
	speed.Value = 16


	local playerUserId = "Player_"..player.UserId

	local data 
	local success, errormessage = pcall(function()
		data = myDataStore:GetAsync(playerUserId)
	end)

	if success then
		--Set our data equal to the current Cash
		if data then 
			Cash.Value = data.Cash
			speed.Value = data.speed
		end
	end

end)

game.Players.PlayerRemoving:Connect(function(player)
	local playerUserId = "Player_"..player.UserId

	local data = {
		Cash = player.leaderstats.Cash.Value,
		speed = player.leaderstats.TopSpeed.Value;
	}
	local success, errormessage = pcall(function()
		myDataStore:SetAsync(playerUserId, data)
	end)

	if success then
		print("Data saved successfully")
	else 
		print("There was an error.")
		warn(errormessage)
	end


end)