18 year old looking for accommodation, closed to the European' institutions

I'm a 18 years old girl, I'm going to Brussels for a an internship. 

I'd like to find a quiet apartment and clean.

I'm studying Law and business in Spain. But I'd like to find a place to stay from 13th June until July 15th.

I am a person who is positive about every aspect of life. There are many things I like to do, to see, and to experience. I like to read, I like to write; I like to think, I like to dream; I like to talk, I like to listen. I like to see the sunrise in the morning, I like to see the moonlight at night; I like to feel the music flowing on my face, I like to smell the wind coming from the ocean. I like to look at the clouds in the sky with a blank mind, I like to do thought experiment when I cannot sleep in the middle of the night. I like flowers in spring, rain in summer, leaves in autumn, and snow in winter. I like to sleep early