Well, it's kinda difficult to determine trend reversals when you have no idea how the trend is being created by market makers. There is supply and demand, when the supply is higher than demand, then the price goes down, when the demand is higher than supply, then the price goes up. That's how candles are being created actually. For trend reversals there are plenty of indicators, which help traders to determine whether a trend keeps its movement or it will be reversed. For example, triangle, double rop/bottom, flags and other things. So, it's easy to determine trend reversal if you have basic knowledge.