What do I do with my stuff?

Before I met my now ex, my room was baron. Now there’s a decent amount of stuff on my walls but I got all of it with her. Every where I look in my room it reminds me of her. It might help to get rid of all of it but that’s like hundreds of dollars wasted plus my room will be baron again. I’m planning on rearranging my stuff and maybe getting new furniture so maybe that’ll help. Just want someone else’s opinion on what I should do.