I have an exam in 50 days and I cant force myself to study for it, how can I force myself out of lazyness?

I might suggest pacing while you read and underlining things that stick out to you while you do it - this actually stimulates your brain while your reading and makes it easier to focus and go much faster. Or riding a stationary bicycle or walking on a treadmill while you read. This is my personality theory of growth and development that I just presented to my instructors - in short: Millican's Theory of personality development - or Millican's Oppositional Theory of Growth and Development. If you're not dissatisfied with the prospect that faces you or where you're at, you have no reason to change. Change your dissatisfaction or increase it and you'll find a bit of motivation. Then you have to hope for something better. If you don't hope for something better or the prospect doesn't inspire you, you're still stuck. Believe that something better is possible by doing something else. Even if you hope it works but don't believe it will....still stuck. And then ACT! If you don't act....you're still stuck. Hope this helps! If it does, let me know.

Try setting a reward for yourself. I am definitely a slacker myself (at this moment, I'm answering random questions instead of studying), so I pick an activity I enjoy and pair it with studying. For instance, I tell myself I can go shopping and spend x amount of money after I study for 2 hours. It's difficult at first, but after a while, studying isn't so bad anymore because your mind will have paired it with something enjoyable.