Well.....yes. Being a procrastinator or being responsible is something ingrained in you by habit. If you habitually sit down to study or do what needs to be done, then yes, it won't be a problem. I can relate to what you said by the way, about feeling that a day was a waste if I didn't do anything productive. I'm happiest when I work hard for an extended period of time in something I have an interest in, and waste a day or two doing something non-productive, but totally fun. Its a reward system, and the fun part is guiltless.