Any way to make only one gui visible?

Help and Feedback Scripting Support
1

I have several guis in StarterGUI that each have a button that makes them visible on click. I want it so the player can only have one open at a time. However, even when I click on the buttons, I can still have all the guis open at the same time. Any tips?

local openBtn = script.Parent:WaitForChild("OpenListButton")
local badgeList = script.Parent:WaitForChild("BadgeListBackground")
local scrollingFrame = badgeList:WaitForChild("BadgeList")
local cooldown = false
local closed = false
local ShopGUI = game.StarterGui.ShopGUI:WaitForChild("ShopFrame")
local DonateGUI = game.StarterGui.DonateGUI:WaitForChild("DonateFrame")
local TpGUI = game.StarterGui.TPGUI:WaitForChild("Frame")

local badgeTemplate = script:WaitForChild("Badge")

badgeList.Visible = false
badgeList.Position = UDim2.new(0.5,0,-5,0)

openBtn.MouseButton1Click:Connect(function()
	if DonateGUI.Visible == true then
		DonateGUI.Visible = false
		return
	end
	
	if ShopGUI.Visible == true then
		ShopGUI.Visible = false
		return
	end
	
	if TpGUI.Visible == true then
		TpGUI.Visible = false
		return
	end

	if cooldown == false then
			
			cooldown = true
			
			if closed == false then
				
				closed = true
				
					badgeList.Visible = not badgeList.Visible
					
					badgeList:TweenPosition(
						UDim2.new(0.5,0,0.5,0),
						Enum.EasingDirection.InOut,
						Enum.EasingStyle.Quad,
						0.5,
						false
				)
					
				wait(2)
				
				cooldown = false
				
			else 
				
				closed = false
				
				badgeList:TweenPosition(
					UDim2.new(0.5,0,-5,0),
					Enum.EasingDirection.InOut,
					Enum.EasingStyle.Quad,
					0.5,
					false
				)
				
				wait(1)
				
				badgeList.Visible = false
				
				wait(1)
				
				cooldown = false
				
		end
	end
2

Try removing all the return things you have in the if statements

3

Nothing changed, still getting the same problem