When our son was school age, he wanted his own room and the only available one was the attic.with pitched ceilings.....
his bed had the legs removed, his dresser went from 4 drawers to three and his comfy chair became a low-to-the-floor seating..but he loved it and so did all his buddies........
this doesn't solve your problem but just wanted to show you that there are solutions to all.....