I don't really know how to explain it but I just start doing whatever it is "automatically". Like I take my brain out of the equation and just start doing it. This is only moderately effective and works a lot better with physical tasks like exercising but it's the only way I get things done some times. I should probably be medicated but that requires making an appointment, going to a doctor and talking about my problems which so far has not been something I can force myself to do.