Why have you set such a rigorous study schedule per day for an exam that is not for another 8 months? Do you have all of the material already? Or will you be learning new material and adding that on to your list of study topics as you go?

I think that studying 13h on Sat and Sun is a bit excessive. There is no way that you are going to be able to sustain that level of motivation for the next eight months. While I admire your commitment, I believe that it is VITAL that you take some time to just relax and recharge. Go out for the afternoon and do something that makes you happy - take a walk in nature, go shopping, watch a movie, go to the gym, whatever floats your boat. If you have truly been sticking to that study schedule, I am not surprised that you are feeling burned out.

I am curious as to why you think that unless you follow this excessive study schedule, you will be doomed to having no future? What is it that you envision your ideal future to be? What is the worst thing that can happen if your future doesn't play out exactly how you want it to? I will tell you that I have friends who are studying programming and while it is a difficult course load and degree to obtain, it is doable if you learn how to manage your time and priorities (and by doable, I mean that you don't need to sacrifice all of the things you enjoy doing while you work towards your end goal).

It sounds like you are very stressed out and feeling burdened and overwhelmed with the perceived amount of work it will take to reach your goals. I urge you to take a few deep breaths and then let yourself watch some YouTube videos. Allot some amount of time for yourself each day to indulge. And then get back to studying. It's all about balance. You might also want to consider talking to a professional and exploring why you feel like you have to meet such high expectations and why you feel like anything less equates to failure.