First day back at work, need some words of encouragement please!

So it’s time. I’ve left my 3 month old to come to work. I’m sitting in my car, in front of my workplace thinking “Why am I here?”

While I was gone management was replaced and EVERYTHING has changed. It’s like starting a completely different job.

How do you working moms do it? I literally feel my heart just broken, usually at this time I’m feeding my baby and i break my own rules by sleeping with him in my bed.

Please be kind. I feel like I’m walking on eggshells just trying to hold it together.