Advice ?????

It's so hard being a new mom, breastfeeding and having a bf that still has yet to grow up and realize it's not about you it's about your daughter . I feel like I'm in this by myself and have no support on his end. He never wants to watch her while I do things I need to do and chooses to live in a separate house so he doesn't have to be around that much . To top all that off I don't live with my fam anymore b/c it wasn't working out I stay in his house with his mom and sister and it irks me . What should I do ?