Linky. HN discussion. My summary with the negatives flipped:
If you want to change your behavior effectively,
- think of a small step,
- that doesn't require willpower every time,
- uses the environment for encouragement,
- involves a new behavior, not stopping an old one,
- is relatively easy to do,
- is prompted by an external trigger,
- (which shouldn't be just learning some new information),
- is a concrete behavior rather than an abstract goal,
- and resolve to adopt it for some fixed period of time, not forever.
Then the behavior change will be easy.
every so often I'll decide to stop biting my nails and I can devote lots of mental energy to stop myself whenever I see it starting up again. On a really stressful day though, I can't devote that energy and I wind up chewing them off again. Usually I stay on this wagon for a few weeks before I can re-dedicate myself to the non-nail biting mental effort. On the whole though, stop biting my nails is not that all that difficult, the problem is to be consistent about it.
It's difficult to start doing things when the path of least resistance still takes a lot of mental energy. Checking lesswrong is easy, reading science papers for class is hard. Having a goal (not failing class the next day) is a big help though.
There are bitter nail polishes to help people stop thumb-sucking or nail-biting. Have you tried that?