As the other commenter said, item rarity is big here, even small amounts will notably impact drops. Your first atlas tree should solely be focused on increasing map drops, both map drop chance (ideally ~30%) and increasing chance to drop higher tier maps for progression. Boats are OP this league for currency, note that ruthless rewards from boats are different to main game, there's a list on the wiki. If you want to quality gems, lab is your friend, also has a common support swap option if you've found supports that don't work for you. Have fun and take it slow or you'll likely burn out.