If you have a short-term target then in such volatile period, I would recommend trading in short as well as the long way in order to earn the profit in rising as well as falling market environment. I do a lot of trading, but sometimes it seems as though it would be just as good to buy and hold
If you are a day trader than first if all you should have to choose good coins and then you should not have to sell in loss. sometimes it seems as though it would be just as good to buy and hold. If the price goes up and you sell to buy back later, sometimes the price just keeps going up and you miss out on those gains. if you know how to manage your investment then you can gain much profits.