Without any doubt, trading on cryptocurrency exchanges can bring extra profit in a short time. 
I do not know any trader who would trade with their own hands, usually they use trading bots for this. Bots are really hard to get profits, of course, many people are using bots, but for the people who don't know how to use it will always lose higher amounts in trading. My suggestion is always to try to learn the basics of trading and it will surely help us in the long term instead of using bots.