I actually believe that 99% of people are losing in trading.
I think the number you give here is very big, it means that in this world there is not a single person who makes a profit from trading, that's a joke!! there are still many who profit from trading and they have had quite a difficult journey to be able to be in their current position so don't exaggerate.
True, trading is like equilibrium, when one loses, another profits. Like a trade can't be done alone, and money does not go out of the system unless withdrawn. I believe in trading an amount lost by an individual is equivalent to the amount gained by another individual so yeah it is an exaggeration when one states that 99% of people are losing in trading. Possibly 99% had experienced losses but not 99% are losing in trading.
A much better option is to focus on top projects and invest in them. You will earn your money sooner than later.
For beginners, it is recommended to learn first about crypto assets that are in the top 10 positions, to avoid scam projects or those that have the potential to rugpull.
It does not harm to be vigilant. Even some of the top 10 coins in the market cap may turn scams one day. So it s best to get updated and knowledgeable about the flows and news of the market.