I struggle with this same issue as well, especially when there doesn't seem to be a direct cause as to why I am getting depressed. I would urge you to do anything that your therapist has recommended you do to keep your mood up. Journaling is always helpful to me and I would recommend that. Sometimes listening to upbeat music helps, or doing something that you really enjoy. If you are having issues of course talking to someone, a friend or a therapist is always helpful. I hope you get it figured out! Remember everyone here at PC is here to support you!