Spectate only other players, not me?

I was making a spectate camera. However, I wanted to make the camera prevent from spectating me (LocalPlayer). I tried this but it only works in the "previous" button. This means the camera can "spectate" me when I click the "next" button. Is there a way to fix this?

--Made by CStarLam

cam = game.Workspace.CurrentCamera
local button = script.Parent:WaitForChild('Button')
local bar = script.Parent:WaitForChild('Bar')
local title = bar.Title
local prev = bar.Prev
local next = bar.Next -- [!] Don't mess up with the keyword "next" you use in normal coding. It will be the variable for the script.

function get()
	for _, v in pairs(game.Players:GetPlayers()) do
		if v.Name == title.Text then
			return(_)
		end
	end
end

local debounce = false
button.MouseButton1Click:connect(function()
	bar.Visible = true -- Tween it!
	if debounce == false then
		debounce = true
		bar:TweenPosition(UDim2.new(0.5, -600, 0.88, -50),"In","Linear",0.25)
		pcall(function()
			local players = game.Players:GetPlayers()
			cam.CameraSubject = players[math.random(1, #players)].Character.Humanoid 
			if cam.CameraSubject == game.Players.LocalPlayer.Character.Humanoid then
				cam.CameraSubject = players[math.random(1, #players)].Character.Humanoid
			elseif game.Players.NumPlayers == 1 then
				cam.CameraSubject = game.Players.LocalPlayer.Character.Humanoid
			else
				cam.CameraSubject = players[math.random(1, #players)].Character.Humanoid
			end							
			title.Text = game.Players:GetPlayerFromCharacter(cam.CameraSubject.Parent).Name
		end)
	elseif debounce == true then
		debounce = false
		pcall(function()
			cam.CameraSubject = game.Players.LocalPlayer.Character.Humanoid
		end)
		bar:TweenPosition(UDim2.new(-1, -600, 0.88, -50),"Out","Linear",0.25)
	end
end)

prev.MouseButton1Click:connect(function()
	wait(0.1)
	local players = game.Players:GetPlayers()
	local num = get()
	if not pcall(function() cam.CameraSubject = players[num-1].Character.Humanoid end) and cam.CameraSubject ~= game.Players.LocalPlayer.Character.Humanoid then
		cam.CameraSubject = players[#players].Character.Humanoid end
	pcall(function()
		title.Text = game.Players:GetPlayerFromCharacter(cam.CameraSubject.Parent).Name
	end)
end)

next.MouseButton1Click:connect(function()
	wait(0.1)
	local players = game.Players:GetPlayers()
	local num = get()
	if not pcall(function() cam.CameraSubject = players[num+1].Character.Humanoid end) and cam.CameraSubject ~= game.Players.LocalPlayer.Character.Humanoid then
		cam.CameraSubject = players[1].Character.Humanoid end
	pcall(function()
		title.Text = game.Players:GetPlayerFromCharacter(cam.CameraSubject.Parent).Name
	end)
end)

Please describe each block of code as well. It can help me learn something new every day! Thank you!