It is so impossible to trade without any single loss. But the thing is we can compensate every loss thru average down. So do not trade the whole money 100%. Always trade in portion. One more thing do not trade using margin if you dont know how to manage it.
I agree, if is impossible to trade without loss, because in trading the price goes up and down. But it is possible to trade with minimal losses, if you have patience and not panic selling. In that way you can make a profit but it will take long, and it is a play safe strategy because you can cut down so many losses.