>>1727278
I have two things I do to make the copper age much, MUCH more bearable. First, I math out how much copper I need for the bare minimum of stuff required for progression:
>cauldron: 10 tin
>forge: 6 copper
>cooler: 10 copper
>mead ketill: 4 tin, 6 copper
>anvils: 2 bronze
>bronze axe: 8 bronze
>cultivator: 5 bronze
>adze: 3 bronze
>fermenter: 5 bronze
>karve: 4 bronze
All told, that's 41 tin, 76 copper. That's about three copper nodes, if you only get the part exposed to the surface and don't go digging up the whole thing, and 14 tin nodes.
Add another 8 tin and 16 copper per person if each of you want a bronze weapon, 10 per if you each want a bronze buckler I recommend making at least one buckler for the guy drawing archer aggro, so it'll be something more like 49 tin, 92 copper. Still about three copper nodes.

Secondly, I do basically no physical mining myself. I'll run through the black forest during the day do not do any mining at night if you want to avoid being swarmed by greyfaggots, they are unironically attracted to the sound of mining/logging and mark the copper deposits I find on the map with the thor's hammer symbol. I keep running around until I find a troll, then I lure him to the three deposits and get him to smash each one. Once he's done with one, I'll place a campfire or two around so that all the ore and stone doesn't despawn, then move on to the next site. Once I'm done, I'll either kill him, or lure him to go break some finewood and do the campfire thing again, then kill him.

Thirdly, if I think the bronze age is really gonna gonna be the cause of burnout, I turn the resource gain up to 2x, then switch it back down to 1x as soon as I'm ready to go to the swamp.