Trading is not an exact science as it deals with variable and unpredictable factors such as human emotions, sudden news, and erratic market behavior. Even the strongest technical and fundamental analyses can sometimes fail due to unforeseen circumstances.

However, technical and fundamental analysis increase the chances of success if used correctly with good risk management. Successful trading depends on:

1. Clear strategy: You must follow a strategy and strictly follow its rules.

2. Capital Management: Do not risk large amounts in one trade.

3. Commitment and discipline: Even in the face of losses or large profits.

4. Continuous learning: Understanding that the market is dynamic and requires constant development in tools and strategies.

Ultimately, accepting that losses are a natural part of trading will make things easier on yourself and help you stay balanced.