What to do with my geo

I have a bit over 8000 geo (i used to have 11000 but I bought a ton of charms) I have every purchasable charm, don't have enough pale ore to get pure nail, already did millibelle (the banker, idk if I got the name right) and I also did the fountain in ancient basin. So what to I use geo for now? Oh and I have the fragile charms, so how do I upgrade them? Oh and edit: what charms do I use? I currently have soul catcher, wayward compass, mark of pride, grubsong, and quickslash