The major traders and corporates hire professionals to do their trades. They know how a common man(gender neutral) with an average knowledge about the market thinks; so it becomes easy for these professionals to think beyond them and make profits. And these so called 'common men' constitute the bulk of the market (in numbers). And that's exactly why so many people make losses.

There are 2 ways to tackle this:

1) Become a professional yourself. In this way, you'll be able to think beyond what professionals think about you, and hence you'll be one step ahead of them.

2) Being STUPID. You may not be stupid, but being STUPID BY CHOICE, is, what I feel as another way to tackle this. Doge coin, GameStop, and Shib coins show how being stupid can give you profits. Eg., A professional might think that majority will sell, and they plan accordingly. But it turns out that you are Stupid (by choice), and you have a Big STUPID ARMY with like minded people. And guess what, YOU WIN ! 

Whales have limits. We don't! Be that BIG  MORON they can't manipulate!