Set your ISO and white balance (WB)
ISO sets the light sensitivity of the sensor. Lower settings make it less sensitive, while higher settings make it more sensitive.
Without going into too much detail, lower settings provide the best image quality so set to the lowest ISO possible, ideally 100 or 200.
White balance controls the overall colour balance of photos, but for now simply make sure it’s set to Auto (way too many settings already; remember also that the WB can be fixed in post when shooting in RAW)