How do you mamas do it?

I'm a new micro-preemie mama. My baby girl was born on Cinco de Mayo at 25+6. She is now 2 weeks and doing well. I have a 2 and a half year old at home who is so clingy and still attached to my boob! But I'm okay with that! I'm struggling with being away from my newborn but also leaving my baby girl at home. This is so hard

Physically, emotionally, etc. I don't sleep. I'm trying to improve my milk supply and balance everything. How do you all do it?!