I will manage my risk with some altcoin by selling altcoin do not have potential to higher price and keep buy new altcoin have much profit later, I don't are have cut lost with my last altcoin before and keep it to get profit at other new altcoin.
But nowadays seeing the market I do not think that you will catch the profit in the daily trade. In the current market it is better that you invest in high potential coins and wait for a few months to get a huge profit from that.