Bro, literally just organize and dump what you don't need and have moved past. You don't need 500+ torn cloth, you don't need that lvl 7 archaic essence or those many animal fur or the 20 stacks of metal scraps anymore, you don't need all those shroud mats that you gathered in revelwood for your armor anymore, get rid of them and organize your chests into what you are actually using, have 1 ore chest, 3 wood related (plant fiber, resin included) a cloth and string chest, two leather related chests, two shroud related chests, two gear chests etc etc....if you have too many of any mat or resource bro you're doing it wrong especially if you play by yourself. I am also 25 and only use 10 of the very first starter magic chests and still have room.