i WENT DOWN PATH AND FOUND THE MIRROR. i DOUBLE CLICK ON IT AND NOTHING HAPPENS!?? WHAT DO i DO NOW??
Did you try to hover your mouse over it and then push the e key? Sometimes this works better for making things work when lagged for example. Also you can do that on loot, doors, chests but don't close a chest with e unless you want to pick up tons of things. Welcome to the game @wizzyvic
Did you talk to Arabella first? Also, you can interact with items by hovering over them and hitting E (default key)
Install discord and connect to the SOTA channel, you can ask questions there to and get immediate answers.
I had trouble with that mirror at first as well. You need to go back and talk to Arabella again. It took me clicking on each highlighted word a few times before it let me enter. Try that and you should be good.