If it makes you feel any better. I kept that junk too for years (25+) after graduating (3 moves). They sat in a box doing nothing but taking up space in my home. On my last move I took what textbooks I could to the library (they did not want it, they already have 8 copies of that sort of thing). My notebooks I would open each one up and realize I had 0 idea what my notes meant. Like no clue. I could see oh this is a calculus class, but what the notes meant out of context of the class and where in the book it referred to? Nothing. I tossed them. I had forgotten they even existed until I opened the box up and sighed in a sarcastic way 'oh good more books that I never use'. The only ones I kept was some ideas I had for programs that were well fleshed out and documented nicely. Plus some nice books on algorithms and graphics. But most of that you can get on the net. Even now 25 years later? That is pretty much out of context of what I was thinking then. I would probably start completely over, notes and all.

I purged about half of my stuff a few years ago. I still have a huge pile of junk. On my next move more of it is 'going away'. It is in the way and takes up space.