Help me item purge

So I'm getting to that point In the game where my house has become stop motion because I've so many items stored away, and I'm scared of getting rid of something I might need later.

Weapon and armour wise I'm good, I sell generic items, keep named or unique ones.

Journals and notes I'm awful with, I have every journal I've ever found, ever note I've ever read (except bounty notes), this is mainly where I don't know what to part with.

Books I'm pretty bad, I've all the skill books I've found and at least a copy of every "story" book I've come across

Material wise, I've everything, soul gems endlessly, Ingots and ores and worse of all every ingredient I've ever plucked from the world (is there a good amount to keep my stacks at).

I'm fine on food as I play survival so I just eat everything I can, and potions I'm pretty good on.

Miscellaneous items are difficult, I know most of the unique/ quest sort of ones, but I also have alot of random ones which I'm sure do nothing to benefit me.

Basically I've played long enough to know most things have a purpose but I haven't quite sussed the levels at which I should horde items, and as I'm certain I'm not alone in this struggle I'm hoping someone can give me some pointers on keeping everything at a reasonable level. Thank you, happy day, I hope you're well.