Trading is a high risk and a high profit bet, so you have to decide when to buy or sell. Pro Traders have a lot of information and skills to read the situation on the market, by taking advantage that they can easily generate profits. Time is money, and you can have another job with all the time from a full-time merchant.
Trading can only worth if you have good experience in trading and also showing good interest there, Those people who have good experience and they have already spend a lot of time in trading they trading can really worth them, In fact crytp currency trading is not an easy job, specially short term trading where you need to take a right a right decision in right time.