Not all trading days are the same. An experienced Forex trader knows that Fridays have nuances. If your goal is to correctly read the charts at the end of the week then keep reading.
The Market Closure
All brokers choose their own time to close the market on Fridays. Check it in advance. Otherwise, you might skip the moment of market closure and your positions will remain open for the weekend, whether you want it or not.
Most traders prefer to close their positions on Fridays. Unless you are a large market participant with insider information, you can never know what will happen to the price during the weekend. If the market forms a huge gap on Monday you might suffer significant losses. Moreover, you will have to pay swaps for holding your positions during the weekend.