How can I survive college?

I'm 18 years old and I'm in second grade of Med School (which means I have to study for tests continously). I have a one-year relationship, I can't stay awake too late at nigths, and still have to manage my social life and resting. Plus, I don't live in my native town so I have to do all the housing by myself and when I have time I go visit my family. 

Another thing is that I've been looking for time to practice languages.
So my question here is how can anyone do all those things right? Every time I try to pay attention to all the things I have to do, I end up failing in one or more of them; for example last week I had to take a very hard test so I argued with my boyfriend because he was distracting me while I was studying, besides I also forgot to do my laundry so yesterday I had nothing to wear, so I sent 4kg of dirty clothes to the laundry.

Anyway, how can I handle all that?

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Dear Raquel. First of all, your English is great, congratulations!

I know college can be a nightmare, especially if you don't live with your family. I guess you should think about all those things you do: evaluate which of them can be deleted. If you find out that none of them can be excluded of your life, try to make a schedule. Besides, talk to your boyfriend about this situation and try to figure something out.

Cheers!