Clearing out childhood bedroom

My mother is planning to sell my childhood home this summer, so she requested I come over and clean out my old room... Ahahaha, I knew it would bite me in the butt one day when I moved out as fast as I could taking only the bare minimum! It doesn't help that my room used to be shared with my older sister, who left a lot of her stuff and also moved all the way across the country. Luckily I only live a few hours drive away, so I was able to sneak up this weekend and get a lot cleared away.

Unfortunately it turns out I may have some hoarder tendencies... Sooo many random little trinkets/collections/papers that I never have any use for, and tend to languish in the back of a drawer or buried in a bookshelf... but still it feels cruel to throw them out! And unfortunately trying to sort through some of these things often turns out to be a positive experience, I look at old drawings or projects and go like "Aww fond memories", and then I'm like "I can't throw these out, what if I forget about them and never get those fond memories again?"

I was able to muster up the strength to throw out A LOT of stuff thought, and donate some things that might fit in someone else's home... But I also ended up with some boxes to bring back to my current apartment. Hoo boy, I'll have to sort those now.

I guess I get very nostalgic when I look back on certain things, and I still haven't figured out how to balance that nostalgia and respecting my past, while also not letting it become an unreasonable burden to the present (Especially since I will likely move out of my current apartment at some point... and I would love to have as few boxes to move as possible).