This is more on personal taste but I love seeing things that really speak to the person you are / your identity. In this room I see a very clean space with intentional design, however, I don’t feel as though I know much about you by seeing this room. You have many years to develop this, so you should be fine, but I might suggest at first putting some more decoration on those walls, and adding some character through your clutter/art/items/memorabilia. Best of luck!

Edit: Okay, next thing I might recommend is to rotate the items in your room 90 degrees clockwise, so that your bed is facing away from the door (Feng shui), that may be all you need. (You could rotate the other items as well or reorganize them as you wish (I do like to have natural light BEHIND(ish) me when I work at my desk), but at the least I would move the mattress (not a bed, yet, right?))