Similar thing happens to me from time to time. I have a semi-systematic way to deal with this: 1) check I drink enough water, I eat enough, I had enough sleep

Similar thing happens to me from time to time. I have a semi-systematic way to deal with this: 1) check I drink enough water, I eat enough, I had enough sleep. I.e. me and my wife have managed to avoid few really depressing evening conversations by looking at each other and saying "We are too tired to talk!", drinking few cups of water, taking a shower and going to bed early. Next day is then so much better :-) 2) I try to remember, when I was outside last time for an hour-long walk? When was the last time I have seem my friends? If the answer is "long ago", I make plans to change this. 3) so far these instances were far-apart enough, but I started to keep a journal, and review it whether it is time to go find a therapist :-) W.r.t. enterpreneurs on Twitter, I follow @sehurlburt and she is quite open with her going to therapy and sometimes even shares some of her workbooks :) I am not self-employed, which means that I have one more option you probably don't really have when feeling unproductive, and that is claiming I am stuck on a problem to colleagues and asking for help. It can sound weird, but pair-programming can help me with this, despite me being stuck is not fueled by technical problem, but mental state :)