Respuesta :
Well, maybe try using pastel colors, since you said "I want a color that is soft, calm and cozy."
I recommend using blue pastels, they are calm, but also pink and green fit into that spectrum as well. It is your decision, but I am going to recommend green, blue, pink, purple, and yellow (pastels).
Hope this helps !
Answer:
Try painting your room white with one different colored wall, add a mirror about the size of a printer, or you could have the one wall like a painting, it helps, I did the same to my room.