My PS4 thinks I'm moving the joystick up when I don't touch it at all. How do I fix it?

My PS4 thinks I'm moving the joystick up, when I don't touch it at all. Whenever I'm playing a game, the screen starts moving by itself and I don't know why. The joystick doesn't move but the screen moves without me touching it. How do I fix it?

This is a hardware problem called the "stick drift", where the analog potentiometers on the joysticks themselves start failing over time. This is caused due to the use of very low quality ALPS Potentiometers by Sony.

Your only solution is to go to a repair shop and request the swap of the entire joystick or just the analog potentiometers.