Over-correct your opinion by reading propaganda

You could also try creating your own propaganda (also useful for Akrasia). You should have a good idea of the types of things that motivate you, so you can use that knowledge to make very focused adverts (e.g. basic posters) for yourself.

There's more on this kind of thing, advertising to yourself, over at http://www.takebackyourbrain.com/ - but it looks like it hasn't been updated in a while.