I have a really bad dust problem in my bedroom!?

I tried wiping my furniture with cleaners, vaccuming and washing my floor, washed my bedding and curtains, etc. Yet I turn around and all I can see is dust in the air extremely bad and the things I JUSTTT wiped down are loooooooooaded with dust after I just cleaned them like 5 mins ago. I come home from school or work and it's just ridiculoussss. Even my bed is covered in it. I also left my window open for like 2 hours to see if it'd help but it didn't. What should I do?!