Placement system works once and then stops working?

Me and a friend are making a City Life type game and im making the placement system but there's a bug in it, when i go to place something it works but then it stops after the first time here is my code:

local Player = game.Players.LocalPlayer
local Mouse = Player:GetMouse()
local Item = "Chair"
local Cost = 0
local Object = game.Lighting.Ownables:FindFirstChild(Item)
script.Parent.MouseButton1Click:connect(function()
  local Fold2 = game.Workspace:FindFirstChild(Player.Name.."Folder")
   if Fold2 == nil then
	print("Folder not found, creating one")
	local Fold = Instance.new("Folder",workspace)
	local PartG = Object:Clone()
	local Part = PartG
	Fold.Name = Player.Name.."Folder"
	PartG.Name = "UnPlaced"
	PartG.Parent = Fold
  else
	print("Theres already a folder, so just creating a part")
	local PartG = Object:Clone()
	local Part = PartG
	PartG.Name = "UnPlaced"
	PartG.Parent = game.Workspace:FindFirstChild(Player.Name.."Folder")
  end	
end)


Mouse.Move:connect(function()
	if Mouse.Target.Name == "Grid" then
		print("The target is a grid!")
		local Folder = workspace:FindFirstChild(Player.Name.."Folder")
		if Folder then
			print("Found the folder!")
			 local Part = Folder:FindFirstChild("UnPlaced")
			  if Part then
			   if Mouse.Target.Parent.Parent.Owner.Value == game.Players.LocalPlayer.Name then
				print("Found the part")
				Part.Position = Mouse.Target.Position
				Part.Anchored = true
			    Part.CanCollide = false
			    Part.Transparency = .5
				Mouse.Button1Down:connect(function()
				  local Fold = game.Workspace:FindFirstChild(Player.Name.."PlacedParts")
				   if Fold == nil then	
					 print("Mouse button 1 was clicked")
				     local Fold2 = Instance.new("Folder",workspace)	
					   Fold2.Name = Player.Name.."PlacedParts"
					  local PlacingPart = Fold2:FindFirstChild(Player.Name.."Part")
				      if PlacingPart == nil then 	
					   Part.Parent = Fold2
					   Part.Anchored = true
			           Part.CanCollide = true
			           Part.Transparency = 0
					   wait(1)
					   Part.Name = Player.Name.."Part"
				     else
					local PlacingPart = Fold2:FindFirstChild(Player.Name.."Part")
				   if PlacingPart == nil then 	
					   Part.Parent = Fold
					   Part.Anchored = true
					   Part.CanCollide = true
					   Part.Transparency = 0
                        wait(1)
                     Part.Name = Player.Name.."Part"
				       
				                     end
				    end
			         end	
				end)
				Mouse.KeyDown:connect(function(key)
				if key == "r" then
	                     print("The R key was pressed!")
	                        local Fold = game.Workspace:FindFirstChild(Player.Name.."PlacedParts")
				   if Fold then	
					print("Folder was found")
					 local Part = Fold:findFirstChild("Unplaced")
					  if Part then
						 print("Part was found")
						Part.Rotation = Part.Rotation + Vector3.new(0,15,0) 
					  end
					end
	                       
                       end
				                   end)
		Mouse.KeyDown:connect(function(key)
				if key == "x" then
	                     print("The X key was pressed!")
	                        local Fold = game.Workspace:FindFirstChild(Player.Name.."Folder")
				   if Fold then	
					print("Folder was found")
					 local Part = Fold:findFirstChild("Unplaced")
					print(2)
					  if Part then
						print(1)
						Part:Destroy()
					  end
					end
	                       
                       end
                   end)		
			end
		end
			end
	else
		print("")	
	end
end)


--[[Mouse.Button1Down:connect(function()
	print("Mouse was clicked")
	 if Mouse.Target.Name == Player.Name.."Part" then
		local Part = Mouse.Target
		local Fold = game.Workspace:FindFirstChild(Player.Name.."Folder")
		 if Fold then
			local Hasp = Fold:FindFirstChild("UnPlaced")
			if Hasp == nil then
				Part.Parent = Fold
				Part.Name = "UnPlaced"
			end
		end
	end
end)--]]

I think you have to many information in just one script and btw do not use just key = "x", do key "x" and "X" so if the player has caps lock on for any reason he can still acced to it