There are some persons that time the trading market by predicting the movement, once they notice a particular pattern the market is trending towards, they will quickly say it will remain down or it will rise. So people do make predictions, but it's also advised for you not to rely only on what some other persons have predicted, it is also good for you to do your own findings and map out a pattern that will work out for you. Before you start trading the Bitcoin market, you have to first educate yourself on how the market is traded.
Unlike Bitcoin investment that requires just the knowledge of it's circles, trading takes so much more, it is not something that anybody can rush into, you need to understand it's technicalities and fundamental analysis before starting so that you will not lose your trading funds. But most importantly after understanding all the basics about trading, you need patience at all time as a trader, don't jump into trading out of emotion and greed, it is a fast way to be desperate and most likely lose everything.