It is true that most of the time we are informed too late and we tend to buy back to the top
One thing is if you are trading, and you do not know what you are doing, or necessarily do not have a strategy, then you are gambling. Trading is a different ball game and you need to be able to make right decisions for yourself which you cannot if you do not learn.
A lot of people who call themselves trader always like joining a moving train, which is a bad thing. Buy when everyone has sold out with no one to sell anymore, and there is a chance from the indicators that an uptrend is about to start on any coin. A lot of you are busy looking for information and those giving them out are pump and dump scammers, which exactly what you have described is what they do.