As the market is volatile and very technical, does it take full time to become successful in trading? or can some trade part time and still make real profit from the market?
Well it actually depends but most full time traders find their success on it.
The problem with trading is that you dedicate your entire time speculating, observing, and analyzing the market. You rely on both external and internal factors that will affect the price of cryptocurrencies. Especially if one news breaks out (e.g. China's prohibition on crypto), those are certain indicators that would help you decide whether you should pull or add more investments in your trading profile.
Be cautious, however, since there was this article that I read that 97% of the day-traders lose their profit and the remaining 3% earn as much as a bank teller. But these are 'newbie' traders which have little-to-no experience on their trading.