feeling so emotional.

I feel like I'm always at work. I've become mommy who's here to tuck me in but that's about it. I can't help it I have to work the hours I'm scheduled if I want to keep an income. My in laws watch my daughter and today when I was dropping her off she was so fussy while I was holding her but the second I handed her to her nana she stopped fussing and put her head on my mil's chest. I struggled with infertility for a while and a lot of miscarriages so it's like a knife in my heart to see my daughter, my wildflower, my miracle Baby finding comfort in someone else. It's enough I almost quit my job today. I don't know what to do.