I want to pain my room but i dont know what colors to paint it?

To paint your room, you must consider several things

• your favorite color(s)
• specific images you want
• what matches your furniture/carpet
• what color(s)/pattern(s) you will still like in several years, and
• the psychological effect of the colors. Blue is good for bedrooms, see http://freshome.com/2007/04/17/room-color-and-how-it-affects-your-mood/ for details.

Making a list to answer each of the bullet points for what colors will work should help focus your search.

Painting a room is a big personal decision, but your decision doesn't have to be definite before you start. You can always go back and redo it.