It will be appropriate for you to try Lagom philosophy, stating that enough is as good as a fest, in only one room of your house. You can start the decorating by choosing colors. For this, it will be sufficient to choose several key colors. You can identify a color palette starting from warm red based tones to soft grey tones that do not strain the eyes.
To establish balance in an environment is beyond the aesthetic of the room; it includes how you arrange the room and the way you utilize it. For instance, if you are planning to read at one corner of the room, it will be sufficient to lighten that section; also, you should be able to easily reach your glass on the coffee table from where you’re sitting. You should be able to move in the room easily; and the furniture should not limit your capability to move or pass. Thus, you should designate the furniture that you think are unnecessary and take them out of the room.