Feeling lost / rant / long post

I don’t really know where to post this, but I need advice, or maybe I just need to vent- I’m not sure. Maybe someone can offer some advice that will help.

I have a one year old daughter who is THE light of my life. She’s silly, beautiful, strong, sassy and amazing.

My boyfriend has 2 other kids I also watch quite a bit and live with us part time- but I am the primary carer of all the kids when they’re here. I feel like my life has become about him, his needs, his kids needs, and now there is none of ME left for me. I do everything in our house, and idk how some moms hold full time jobs and do all of this because I barely feel capable to do what I do, and according to my bf, it’s not enough.

I feel constantly stretched too thin, stressed out, and like I’m failing all of it.

I miss me. I miss myself. I don’t even remember the last time something I did made me happy for myself. My daughter makes me happy all day, but I feel like I’m lacking something. It makes my life seem dull, boring and meaningless. Is there really all there is for me?

My bf doesn’t help lift a finger because he things because I’m a SAHM I should do it all. And I don’t disagree to some extent.. but he doesn’t even change diapers. Ever. Get his older kid ready for school. Fix means. He won’t even clear his plate off the table after dinner. Pick his clothes up off the floor.

And I can’t help but think- I love him so fucking much but, maybe he doesn’t really love me? I feel so unvalued. And maybe if I have to feel like a single mother to three kids here, but only have ONE - maybe it’s time I leave and only be a single mother to my own one child and prioritize her and just me. But it feels like giving up. It feels like, if I throw in the towel just because I’m feeling down, then maybe I’m not really a ride or die. Idk how to feel. And yes, we have discussed all of this and his position remains unchanging on the topic. Maybe it’s time. I don’t know.

I don’t even know what I’m trying to get at, but I felt like I needed to be heard and I never ever feel that way. Sorry for the long post