How to make currency in endgame?

Is it just crafting or what to do to make hundrets of exalts / mirror?
Every streamer has these insane amounts of currency but I dont and I have no idea what are they doing that I dont...
atm I have 180 hours in the league what means 15 hours per day, have no problem to do any content but I have like 20ex + another 30ex in equip so how am I supposed to do a mirror in a week?
Delving fossils is like 1ex/hour
Incursions ~ex/day on average... maybe... dunno I never got anything good from corruptions but lets say you sell them all
Zana missions - main profit probably from free guardian maps but they are not in every mission and there are too few missions (1 per 10+ maps) and guardian fragments are still just 30c
Beasts - I got 1 farul for 90c and some 10c beasts so maybe got 2ex from beasts in whole league
2 exalt drops so far, 1 6L from Vaults of Atziri (sold for 40c)
10 Siruses down (including AW 5, 6 and 7) = few 1c helmets, 2x thread of hope (2x50c), 1x 20c watchstone
around 2ex from influenced bases...
did I miss something?

What's the trick to have 1000ex at day 5 while having another 200 ex in equip?

- Being the first to offer certain items to the market (first to ilvl86 bases or boss drops for example).

- Pooling currency as a group for faster gear progression and being able to consistently invest high amounts of currency into maps.

- Item flipping (the best method by far).

- Crafting high demand items, mostly for meta builds.

To start flipping items I'd recommend you to set up livesearchs for your own gear if your build is popular enough because you already should have a certain knowledge for the value of your own items.

To start crafting for profit is a bit different because you have to put some currency aside for experiments. Essences usually provide a cheap start since you're not going to aim for 200ex items. Your goal is to find something consistent. Maybe in the 1-5ex range with stygian vise belts or two-toned boots. Harvest is a great league to figure this stuff out. Also chaos orbs are quite cheap as well.