Probably with that strategy, all you would have needed is to relax and be patient a little bit, you could have been able to win. However, there are so many times you will need to study the charts first and see if the position you are buying from is a good one or not. However, some Altcoins may require you to stay longer before you can even see some profit. I have held a coin for over a month and I saw a huge profit on it eventually. I prefer to hold a coin if my strategies didn't go well than selling as long as I know it still sure have the possibility of coming back up or being pumped.