Well, pretty much every video guide on how to make currency in PoE is absolute garbage for a new player. Literal garbage. And not because the videos are bad, per se, but because it doesn't matter how well these veteran players think they are explaining something... they aren't. They'll post a video talking about making multiple divines an hour, then a new player will go and try it, and won't even make a single divine in multiple hours. Because they don't actually know that EVERY SINGLE THING IN THE STRATEGY IS REQUIRED. And that the maps have to be rolled properly. And that you need to know how to upgrade and sell the crap that is dropping. Even when the 5 head making the video insists that it isnt, and its just "alch and go", they are being disingenuous and baiting new players.
That is why, for every new player, there are only 2 options for actually succeeding at making at least some currency. And honestly I wouldn't even recommend 1 of them off the bat (essences) because it still does require that you know to use remnants of corruption, know when to use them properly, and can figure out the best way to bulk sell each different essence type.
Enter Harvest.
Harvest is the best noob farming strat there is because its as simple to set up as any strat out there, but its also just raw currency that requires no upgrading, no researching, no nothing after it drops and you pick it up. The only thing you need to know, when going to sell it, is that it will fetch a much better price if you wait and sell it in bulk (like everything else).
There aren't 20+ different types of shit dropping all with varying prices, it's only 3. All of which are much closer in price range but all of which are easy to price.
If you want to know HOW Harvest works you can try to wrap your head around this video (eventually you'll want to watch it but it might add confusion at first)
This is a starter atlas that also includes the best minor addition to any farming strategy, Niko nodes. You'll passively gather Azerite from any sulphite veins you find and click in your maps which you can use to go and buy single slot resonators from Niko at the Azurite mine (accessible via waypoint, anywhere).
PoE planner is an online tool to plan your passive skill tree, equipment and skills for Path of Exile.
poeplanner.com
This does not require anything on the map device, and doesn't require any sextants or scarabs either (eventually you'll want to use them once you're comfortable to maximize profits)
After you get comfortable with the strat and have more points you can add Growing Hordes and path over to the right side of the tree and grab the last Harvest nodes, but those require a bit more knowledge to use properly. Stay away from them until your comfortable with Harvest itself. Essences are also good to add to this.
*NOTE*: You won't guarantee a Sacred Grove in every map this way, but 90%+ of your maps should have it, with no actual investment on your part.