My level system does not work, instead of leveling up it keeps going, what is wrong with script?

like, everything works, when I walk exp goes up as expected but when exp hits max it does not level up, it just keeps going, here is my script in serverscriptservice, I apologize for bad english

local maxXp = 20
game.Players.PlayerAdded:Connect(function(player)
	local levelinfo = Instance.new("Folder")
	levelinfo.Name = "LevelsInfo"
	levelinfo.Parent = player
	
	local level = Instance.new("IntValue")
	level.Name = "Level"
	level.Value = 1
	level.Parent = levelinfo
	
	local exp = Instance.new("IntValue")
	exp.Name = "Experience"
	exp.Value = 0
	exp.Parent = levelinfo
	
	
	local xpNeeded = Instance.new("IntValue")
	xpNeeded.Name = "expNeeded"
	xpNeeded.Value = 20
	xpNeeded.Parent = levelinfo
	
	
	exp.Changed:Connect(function(newExp)
		if exp.Value >= xpNeeded.Value then
			level.Value += 1
			exp.Value -= xpNeeded.Value
			xpNeeded.Value = xpNeeded.Value + 2
		end
	end)
	
end)

this part here does not seem to do anything

	exp.Changed:Connect(function(newExp)
		if exp.Value >= xpNeeded.Value then
			level.Value += 1
			exp.Value -= xpNeeded.Value
			xpNeeded.Value = xpNeeded.Value + 2
		end
	end)

I tried recreating the problem, but there seems to be no Problem. I have sent my .rblx file as an example to how it may work

Test_Works.rbxl