Forex is an unpredictable market where anything can happen anytime. In this circumstance, we analyze the market to predict the price movement, which sometimes work and sometimes don’t.
Being overconfident is easy but it’s hard to carry profit regardless of that overconfidence. We should rely on market analysis to reap gain on average.
Being so overconfident isn’t possible in Forex because no one knows the price movement of Forex from earlier. But market analysis can help traders catch the market trend.
Investment sites like Forex Trading I don't think can be found anywhere in the world where it is possible to double the investment by creating knowledge.