I get my experience by doing with my own analysis and sometime learning from group telegram that i joined and from internet because there are many resource we can found i. And i always make some notes from my trading. So we can learning with many ways
I would suggest you to stay away from telegram pump and dump groups. They are mostly done by people who are trying to move the market in one direction so they would move it in the opposite direction. They will tell you that a massive pump is coming for such a coin and persuade you to buy that coin while they will actually wait for this "fake signal" to pump when the owners of that channel will actually dump their coins.
You will now be holding some shitload of a shitcoin. Stay away from those.