The trading journal is in my eyes a must-have tool for trading, because it gives you an insight of how your trading activity has performed so far. It is important to keep an accurate record of your trading results, because they allow you to assess the overall performance of your trading decisions and how effective your strategy is.
Most people have a simple trading journal that carries the following basic info over their trades such as date, entry price, ending price and so on. I have the same.
Below this sentence you will see my trading journal setup in excel.