Hi Virginia! I think it´s great that you can finally have your own bedroom and specially that you picked that style of design.
Minimalism it´s not about not having stuff, it´s about having just enough so you can live in an organized, clean and aestethic space, so I re-designed your bedroom thinking in this 3 main words.
The first thing that I did, was to hid the heater with some millwork, this way we can have a visually cleaner space, and I place the desk in the left wall, the desk is floated and with some shelfs so we don´t cover the natural light, this position is better so the heater can still work while you´re studing, also the desk has a mirror and some drawers under, so when you are not studing you can use it as a makeup station.
You can have a Queen bed or a double bed if you want a little bit more of space, I added a big mirror next to your bed so you can have a good look at your outfits and this big mirror will also help to give the sensation that the room is much bigger and with more light, in front of it there´s a wood stool, it´s a little bit sculptoric and cool but you can use as side table or a stool where you can sit while put your shoes on.
The closet has brownish glass doors and LEDs in the shelfs that creates this elegant style, I added a floating shelf above your bed so you can put some light bulbs, which will look very cool in the night by the way, and you can put there some photos too.
I replaced the hanging lights with some spots lights as I think the hanging lights need too much visual space, this spots lights give us a visually cleaner space and you can put 3 or 4 lights and point them anywhere you want in your bedroom.
I really really hope you like it, I think the style that you picked it´s the best one, enjoy your new bedroom!
Greetings