I need some ideas for my new room because my mom is letting me redo it.. Any suggestions?

Ok so my fav colors are neon green yellow and blue but so far i think i should make a collage and show my parents i have some ideas like a fuzzy bean bag chair... erfly designs on wall... Color throw rug.... Trendy organizing bins... Magazines.... Curtains... Pillows(bright colors).... lava lamp... Border A book shelf this is all i have but i need some more ideas to make it perfect for me so i can feel cosy and comfortable...