Hi,
while I completely understand and felt the same after my first i just want to put another perspective on it because I've noticed a few people saying that they can't wait to be more than "just a mum" again.
Before having my first baby my work was my life, my husband and I ran a business together and my best friends worked within the business so when I left to have our baby I felt like I didn't see my husband half as much anymore, my friends were all in a different stage of life so I didn't see them, I had no friends having babies at the same time so no one to turn to like that, no projects to work on. I used to go to a hot yoga class three times a week, that stopped, everything changed. I felt so isolated. Still, I ended up not going back to work and realised that there is a lot to be said for being "just a mum".
While I'm not advocating that you quit work and be a stay at home mum, it's not for everyone, what I want to say is please know that this phase of yours and your babies life is transient. Your role as "mum" is new and takes time to get used to. It's changed your life dynamic but it's more important than any other role that you will play in life. It's the title that you will carry with you now, passed work retirement life, until your dying day. One day your baby will grow up and find independence and you will so miss these baby days
So ry to take each day as it comes remember that you're still you but a new you, the most important person in the world to your little one and that can take time to adapt to. You will face challenges it will seem daunting, people will always have their opinions on which ever way you decide to parent so you need to find confidence in your new role like anything else.
Enjoy your time off with your baby. Take too many pictures. This time will fly by, the cheesey clichés are so true they're not babies for long