An investment journal/diary is a great way to store the investing decisions you have made or thought about making to help build your confidence and ability. The more information you keep, the more you can learn as you progress on your investing journey.Use your journal/diary to create your own investment strategy by identifying what does and doesn’t work for you over time:Research - As you discover companies of interest or research properties and suburbs, add them to your Watchlist and add a journal note about why you are watching themLearn- Found an article that you want to read later or keep handy? Add it to your journalInvest- When the time comes to buy or sell an investment, add a note about why you made the decision.Review - Keep your journal up to date with any investments or changes to your Watchlist so that you can keep track of why you bought or sold an investment.