@antnf8900 I feel this deeply, for me however I realised it was a confidence/mild depression thing. When I was lacking confidence, feeling down I felt like this and couldn't make conversation.
@atlas2023 SAHD here, I'd say given breastfeeding/feeding duties and that sleep deprivation and babies being babies I wouldn't worry about 'assessing' performance in your role until your child is 2 years old +, just focus on doing whatever you need to do to keep you, the baby and your partner...