How do i make a Ticker GUI work?

I've been attempting to make a Ticker GUI, If you don't know what that is, its a GUI that changes the text to whatever the creator desires after every so often, such as 5 seconds.

This is what i've done, it doesn't shut down studio, but it won't change the text after 5 seconds.

If you need to know the name of the GUI and the components in it, the GUI's name is Ticker, the Frame's name is Tick, and the Text's name is TickerGUI.

This is an example.

while true do
    wait()
    game.StarterGui.Ticker.Tick.TickerGui.Text = ("Test")
        wait(5)
    game.StarterGui.Ticker.Tick.TickerGui.Text = ("Test")
        wait(5)
    )
    )
end

If you need to know the actual script its:

while true do
    wait()
    game.StarterGui.Ticker.Tick.TickerGUI.Text = ("Welcome to Shadow Squadron, Made by Speed5231, TurboFusion and IIHUSKYII!")
        wait(5)
    game.StarterGui.Ticker.Tick.TickerGUI.Text = ("Credits: speed5231, TurboFusion, IIHUSKYII, NWSpacek, Quenty.")
        wait(5) 
    game.StarterGui.Ticker.Tick.TickerGUI.Text = ("All guns will be upgraded to my own creations in the future.")
        wait(5)
    game.StarterGui.Ticker.Tick.TickerGUI.Text = ("I give credit to the original creators of the weapons.")
        wait(5)
    game.StarterGui.Ticker.Tick.TickerGUI.Text = ("Shadow Squadron is not an attempt to copy Phantom Forces.")
        wait(5)
    game.StarterGui.Ticker.Tick.TickerGUI.Text = ("The name of this is original and was inspired by Phantom Forces.")
        wait(5)
    game.StarterGui.Ticker.Tick.TickerGUI.Text = ("Do not dislike because this game contains free models.")
        wait(5)
    game.StarterGui.Ticker.Tick.TickerGUI.Text = ("Thanks for playing! Make sure to share this game on social media, with you're friends, and family!")
        wait(5)
    game.StarterGui.Ticker.Tick.TickerGUI.Text = ("Please leave a thumbs up! This game is in dev and it shows appreciation!")
        wait(5)
    )
    )
end