how do you make a GUI that allows when you click it it will go to another screen?

I think what you mean is to make a button that when you click it, makes another gui appear, well...

First put a ScreenGui in StarterGui, then put a frame inside of that ScreenGui. After that, put a text button into the frame, move it wherever you want and customize if it you want. Then insert a local script inside the TextButton

Put this inside the local script

script.Parent.MouseButton1Down:Connect(function() -- If the player clicks on the button, it will -- create a function

script.Parent.Parent.Visible = true -- Makes the frame visible (tip, add a text label inside of your ---- frame if you want to have words inside of it)

if you want an exit button, do the same thing but instead of "true", do "false", inside of the local script.

oh also, make the frame invisible (Go into the frame's properties and change the 'Visible' property to false)