Teen bedroom inspiration?

I'm 15 and my parents say I can redo my room. I've looked a lot of places for designs I like. I've found nothing I like, maybe you can help with inspiration. I don't know what color to paint it. It has to be a light color because I have a small room. I was thinking yellow, peach, green or purple. No black anywhere on the walls. I can't seem to find bedding I like, but I want something that maybe stands out because the walls will be mellow.Preferablyy reversible, if you have any links to reversible bedding that would be great. NO ANIMAL PRINTS PLEASE. So do you have any ideas on what I could do? I was planning to get some shelving, but I don't know what type or how to set it up. I want to have posters that I framed up. I just want a place where I can relax that isorganizedd, not messy and cluttered looking, so please don't say stuff like: "Splatter paint your walls" or "Get tons of decorative pillows and wall accents" It needs to look simple but still creative, if you have any inspiration that would be great! :) Thanks for taking the time to read this.