I am installing a new outlet in master bedroom behind the tv. There’s a outlet directly below where I want to add the new one. I was planning on pulling power from there. When I pulled the outlet out there was already two 14/2 cables going in to it. Am I still ok to use this outlet for power? And have three cables going into this one outlet? I’ve heard your not supposed to stab wires into the back of the outlet (which they currently are already). Could I just attach the new 14/2 wire to the screw terminals? And keep the the other 4 wires in the back of the outlet?