Text in TextLabel is not changing, how do I fix it?

I'm completely confused on why my script will not work. I've tried changing the variables, but it just won't work.

wait()
local l = game.Players.LocalPlayer:WaitForChild("leaderstats").Level
local t = game.Players.LocalPlayer:WaitForChild("PlayerGui").Level.LevelName.Text
script.Level1:Play()
l:GetPropertyChangedSignal("Value"):Connect(function()
	
	        	if l.Value == 2 then
	            	script.Level1:Stop()
			script.Level2:Play()
			t = "Level 2"
		
			else if l.Value == 3 then
           		script.Level2:Stop()
			script.Level3:Play()
			t = "Level 3"
			
			end

        end
 end)

This LocalScript that has this code is in StarterPlayerScripts. In this code, I'm confused about the text changing, not the sound playing/stopping.