the most important thing is having a brain and knowing how to use it!
everyone starts from zero and works their way up towards becoming an "expert". the difference is that when a good trader makes a trade no matter the result they will gain some experience and the next trade they make will be a better one and little by little they will grow.
a gambler however makes a trade but the result doesn't matter for him. if he wins he just becomes happy and if he loses he becomes sad. he doesn't waste any "brain power" to analyze what went wrong or right that led to the loss or profit. that is why not everyone becomes successful in trading...
Yes. I understand that the most important thing is to have experience.
For a trader, yeah it is. No matter how many articles someone reads about trading especially bitcoin or altcoin trading, until or unless he wont do it practically and make some mistakes, it is not possible for him to truly grab the nature of this profession. Experience comes with doing practical and learning from blunders. It is what differentiate an expert from a newcomer in the world of trading.