Datapoint: I still struggle with bad habits, most of which relate to information addiction. Link aggregaters, forums, books, wikis...even academic articles (The tab explosions I get following trails of citations are worse than TvTropes). It's a very double-edged thing: lowering grades but significantly enhancing research projects.

It can help with identifying the bad habit and recognizing its triggers, but that won't necessarily make resisting the trigger easier. It might be useful when used in conjunction with some behavioral modification techniques?