Room help! i want to darken it up?

You could use drapes, they are generally not transparent, but they can also be pricy. I work night shift and have found that during the day I need my room dark so I can sleep. Your best bet would be to buy auto tint. You can get from 10% to 100% (100% will not let any light in). You can apply this to your windows easily and it's not very expensive. The up side is that it's not permanent and you can open your windows if you like to get more light or fresh air without having to deal with curtains or blinds.