Waking up with very negative thoughts/sadness (depression?)

Today I woke up and had critical thoughts about nearly every aspect of my life – from my past parenting to current level of success (or lack thereof). Last night, I was at a party with people who are, at a minimum, more financially successful than me and my husband. I was trying not to get into compare mode but it was a challenge. Today I woke up feeling worthless and “less than”, crying, and barely making it in to work. I guess the main thought is “I’m not enough” and that can be applied to many areas. I’m just struggling with finding a believable better thought.