Change your life so that you're doing what you're really passionate about. If you're lazy that means you don't really want to do the things you have to do, maybe you're even unhappy in general. We're all programmed by society to think there are tons of things we should be doing that aren't really fulfilling and don't ultimately help us evolve or whatever.

Laziness isn't a disease to be resolved per se, it's a symptom of something deeper, and attacking it directly can even be more damaging than being lazy, being harsh with oneself and kicking one's own ass, or even worse, changing one's attitude or personality, to get oneself to do things that aren't ultimately meaningful.