Some of these console commands could heavily affect your save file. I would err on the side of caution from this point on. There won’t be any notification or anything but you can press F1 to see if it’s working as it should bring up a box in the left corner where you can type in the codes.
To start with, type in developermodeon at the main menu screen. The following commands only work on PC and can change a lot more of the game.