i want to clean my room and decor it help?

for cleaning, start with the clothes. once they're out of the way your floor is so much cleaner. just throw them all in the laundry basket and you're almost done! as for decorating, if you want to take on the job, paint your room. i'm doing that right now, i have yellow on my walls too. i'm painting it a redish purple, it's really nice. but up a bunch of posters, locate a good poster store and buy a bunch of posters of your favourite bands etc.