Yup. Last year I read one of Tony Robbins books and the major thing he stressed was that no one really knows shyt about the market or can predict shyt accurately. But the hustle is that a lot of these firms want to convince you that they can, so they can bleed your wallet 3x for their guess work.
Charge you for their service
Charge you for every trade they make on your behalf
Charge you for whatever % of profit you make/pull out
He pretty much echoed what yall said, low cost index funds, ETFs, etc.
He mentioned that something like the S&P 500 has historically always increased by 8-10% (iirc) over the long haul.. but again, you'd be playing the long game and not the instant-gratification game.