Something that I have noticed a lot of new parents doing is complaining about "bad days". The baby doesn't sleep through the night; it's a bad day. Mom didn't have any time to get anything done during the day; it's a bad day. Baby had a huge blow out and mom had to change diaper and outfit for what feels like the millionth time that day; it's a bad day.
I suffer from anxiety on a regular basis, so I knew that adding a newborn to the mix wasn't going to the easiest thing I have ever done. Early on I made a point of focusing on the moments and not the days. My days are now made up of a bunch of moments that are hard, special, firsts, heartwarming, tear filled, heart bursting, challenging ... they range from good to bad, and can change in a second.
If I concentrated on bad whole days, I would be a mess so breaking them down into bite size moments is much more manageable - and I am able to focus on the good ones and get past the bad moments pretty quickly.
Remember moms and dads - the days are made of many, MANY moments so you can only have so many bad moments in a day (no sleep, getting nothing done, messy diapers) before you get some good ones!