FFS, there's such a skill as 'being tactful'. It's a survival mechanism that makes you seem less of an asshole, which means that you insult fewer vengeful psychopaths and scorn fewer women during your day-to-day life. You might want to learn it.
It may seem obvious to some of us that "shut up and work" is the only way to start working, but that's only AFTER you've solved the actual problem behind procrastination. The problem in question is that "shut up and work" doesn't work unless you have some motivation to do the work: with nothing to back up the arguments of the work-eager part of your mind, your internal dialogue will always end with the lazy part of the mind winning.
The trick is getting motivated. Really, genuinely motivated, motivated enough to give you a really good argument in favor of working rather than doing a myriad other productive and beneficial things, like watching cats on Youtube.
One of the ways to get motivated, the one that worked for most self-made men, is to make a commitment. Commitment is pretty much your willpower applied to a statement to make it an internal absolute; an unyielding dogma, so to say, that your work-eager part can use to bludgeon the lazy parts into submission. The problem is that without a lot of willpower in the first place, it won't work, and most people have that strange tendency to derive their willpower from motivation rather than the other way around.
Another is to turn work into a part of your schedule and social life, though that works better with exercise than with homework.
Another yet, the easiest and most frequently used one by far, is to recognize that you're unhappy with your current state of life, then let the society trick you into believing that you'll feel happy once you've reached some sort of socially acceptable goal, like "high status", "new clothes" or "paying job". In other words, give up your youthful pride, sell out and adopt the consumerist values. It won't make your life meaningful, or happy, or worthwhile, but it will get you working. That is why, say, barely educated consumerist ladies or gentlemen without a single rational thought in their heads manage to claw out a better GPA than a bright, yet unmotivated geek.
In any case, lack of motivation is a long-term problem with a suitably long-term solution. Short-term solution is much simpler.
Angle, your problem right now is being overwhelmed with the amount of homework you're about to do.
I have the same problem. My solution is to forget that I have to do ALL of the homework and to tell myself that I'd "only answer this first question". It's way easier to do "just one question" if you don't have to accept the responsibility of answering ten more questions after that.
By the time I am done with that first question, I am either as lazy as before but satisfied with myself, or hooked and willing to continue working on the second question, and then third, and so on.