OP, if you have lost some money, sorry for your loss. There is nothing that can be done if you have already sent the money because in case you dont know, ETH and many other crypto transfers are irreversible unless the receiver themselves return it, which in case they are a scammer, they wont.
In any case these methods of scam are not new.
The basis of most scams are on three concepts : Greed, Fear, Doubt Scammers use these to blunt the logic out of the victim. If the person is logically thinking then tell me, why would a person give away free money when everyone in the world is actually working hard to make money?
Anyway I wont bore you with a moral lecture but keep this in mind if you want to be safe in the internet. This forum supports free speech so there is nothing that the adminstration of this forum would do to prevent scams but the forum members can work together to make others aware of such scams.
Thank you so much for advice.
I need it for next day.