A Strategy to break away from a habitual activity is to:

Toothpaste companies heavily advertise scary messages of tooth decay (a cue) ensuring people buy their product.

McDonald's, for example, uses brain science to create habits by:

Companies make us habitual. Companies like Facebook, NetFlix, and Uber spend millions on R&D of better tools to minimize friction, to get people to use their services more and more and form a habit.

Just as removing friction aids in doing the activity more often, adding friction can aid to remove the bad habit, by making it difficult or cumbersome to do so.

Just merely knowing something is good or bad for you is not going to give you any benefit, unless the implementation is done. Conscious knowledge cannot change your behavior, one has to make necessary changes to successfully act in self-control.