How the fuc* do i do this?

okay so on sunday im getting my own room! im really happy i share with my sister and i hate her so much! so yeah and i was wondering how i could like style my room? i have a normal twin bed then i have a dresser thing and a night stand i also have a tower speaker and my dirty clothes bin lmao and i have a walkin closet i really need help im really bad at this kinda crap! haha oh im a boy hah (and i obviously have clothes and other random stuff? thanks so much