Trading Journaling is the process of keeping records and analyses of your trading activity, your thoughts, your decisions, in a bid to improve trading performance and decision making. 

Why is this necessary?

Maintaining a trading journal has proven to be one of the most effective ways of improving your trading performance. By Journaling as defined above, traders can; 

1. Recognize patterns: Recognizing recurring patterns in your trading behavior, such as impulsive decisions or emotional reactions.

2. Understand and then analyze mistakes: Traders can understand the root cause of what went wrong during trading, thereby making them plan how to avoid similar mistakes in the future.

3. Will help traders refine their strategy: Traders can now consistently evaluate and improve their trading plan, risk management, entry and exit rules.

4. Build emotional alertness: Traders can recognize how emotions can influence your trading decisions and learn to manage them when they journal their experience.

5. Build confidence: Reflect on successful trades and reinforce positive habits. 

What to Include in Your Trading Journal

1. Trade information: Record the date, time, market, instrument, entry/exit prices, position size, and profit/loss.

2. Trade rationale: Explain your "why" for every trade you enter, including your analysis, market conditions, and risk management considerations.

3. Emotional state: Take notes of your feelings before, during, and after every trade.

4. Evaluate Post-trade analysis: Evaluate the outcome of every trade, identifying what worked well and what didn't.

5. Take note of every lesson learnt: Summarize salient points and key takeaways and action items for future improvement. 

Tips to Effectively maintain Trading Journaling

1. Be consistent: As much as it lies within you, make journaling a consistent habit, usually after each trading session.

2. Be Truthful: Record your thoughts and feelings honestly, without masking.

3. Utilize a well structured template: Build a format to ensure you capture every relevant data.

4. Set a timetable to Review and reflect: Regularly review your journal entries to identify patterns, trends, and areas for improvement.

5. Keep it private: Treat your journal as a personal and confidential space for reflection.

Digital Trading Journaling Tools such as Google sheets, TradingView, Evernote, etc can be used to streamline your journaling process.

To conclude, Trading Journaling is a powerful tool for improving your trading performance. By recording your trades, thoughts, and feelings, you can recognize areas needed to be improved on, have your strategies refined and also enhance your emotional alertness. Make journaling a consistent habit, and you'll be on your way to becoming an effective and successful trader.