I keep a mood tracker called T2 Mood Tracker. It has a diary too. It was developed by the US government for veterans. It works really well. You can look at the mood graph and then check the diary to see what was going on that day. Unfortunately I quit using it for 2 months so I have a long straight line in the middle of my chart. But if you use it every day or even once a week it gives you a really good picture of what's going on with you. It's an app on my Android phone. I'm sure that the iPhone has it too.

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