To customize it, go to SETTINGS (at the far upper right of your screen, next to LogOut) and click on it. You should then have a screen that includes a list of “subscribed forums.”
Notice the green print below the description of each forum that says “Unsubscribe from this Forum.” Click on it to remove any Forums you don’t want to see on your own “home page.” You’ll see a little notice that you have been unsubscribed, then you should be returned automatically to your “home page.”