This is an excellent idea, from Alex Mitchell of #feministfriday
"Here's something I'm profoundly glad I do at work. Any time someone says (in writing) something good about something that my team or I have done, I save it to a notepad file called nice.txt. Then when I'm in need of a boost I will open nice.txt and read what people have said in descending date order until I feel happy again. If you think there is a possibility that this would work for you, I really encourage you to try it, it's been a tonic for me more than once and is so easy to do."