Every time I get something done, I feel good and it gives me the momentum to keep going. Maybe it's the sense of accomplishment or the satisfaction you get when you finally complete something.
What ever it is, it's definitely something you want to feel over and over again. The taste of success creates a desire to keep you coming back for more. If there's one drug you want to get hook on, this is it.
You can make a list, attempt the easier task first or break them into easier ones. The point is to reach the finish line. Once you do that, the other lines will look a lot closer than before.