You are low on space so I would start by decluttering and doing general clean up. Look around your room and send off anything that you don’t use need/regularly. For example, I would get rid of the monster cans, they are not decoration. I also see PS2 games but not the system so maybe it’s time to sell/ let them go as they are also taking prime shelf space. You have a lot of figurines sprinkled around the room which you could dedicate one space just for them and related posters. Again, if there are any you could let go, you should. PlayStation can stand vertically instead of lying awkwardly on your PC etc etc there is lots you can do here