Addiction means your mind want something in a regular basis to satisfy the dopamine needs.

Your brain has three status of living conscious,subconscious and unconscious.In the stage of conscious your mind knows what you are doing but on other stages you may not unaware of what is happening even if you are living in it.

So if you are having some habit to make you pleasure on short term like gambling,porn or dating and other lot of stuffs will become an addiction when you want that happiness everyday.But these things is not your long term pleasure it just only meant to be short term but your mind turning it into long term by making you keep doing it very often because your subconscious and unconscious make it as a habit already since you are doing it already.

If you want quit addiction from something then you may need to change your life style and concentrate on long term pleasure like building your career or doing workouts and getting success in your business like that.