I have some problems working on my career/improving myself. I do good most of the time, enjoy learning new things, doing sports and so on, but sometimes there are a couple of days when I have just really low energy and can't force myself to do anything productive, it's hard for me to make any decisions and I just feel very down generally. I used to get treatment for depression, but in theory I'm OK right now. Still, I do feel really bad once in a while and get angry and frustrated at myself for wasting so much time. Do you have any tips how to avoid these states? Or how to force yourself to work, even when you feel like a total waste of space?