Yes dear new daddy, it’s your job too. We understand you have a job & cannot give your entire time to your baby. But that’s not an excuse. You are a parent now. You have additional responsibilities.
You need to find a balance between your office responsibilities & helping to take care of your new born.
It’s definitely not easy. And such responsibilities do not come with a user manual. Take tips from other dads.
Talk to your dad and find out, how he helped your mom, in taking care of you. But mainly, Experience teaches you.