The best case scenario in confirmation bias is that a trader will simply waste precious time researching what they already knew to be true. However, the worst case scenario is that not only will they lose time, but also money and the motivation to trade. A trader must learn to trust themself, and be happy to use their intelligence to develop profitable strategies, and then be able to follow them without fear or doubt.

The 2nd method is by performing a carry trade, where you can profit by buying a currency with a higher interest rate, and selling a currency with a lower interest rate. An example of this would be the USD/CHF (Swiss franc). If you buy USD/CHF, you are buying the USD, and their interest rates are higher than Swiss interest rates, so if you hold the position overnight, every day you hold the trade you will make money, and the money will be deposited in your brokerage account.
Obtaining and maintaining an effective Forex trading mindset is the result of doing a lot of things right, and it usually takes a conscious effort on the trader’s behalf to accomplish this. It’s not necessarily difficult to achieve, but if you want to develop an effective trading mindset, you have to accept certain facts about trading and then trade the market with these facts in mind…
The problem is that this is where traders are most likely to succumb to overconfidence bias. It's not uncommon for traders to complete a winning streak and then believe that they can't get anything wrong in the future. To believe this is of course unwise, and is only going to end in failure. Make sure you always analyse your trading sessions and look at your wins and losses in detail.