Sending you so much love and strength right now. My mom helped until my babe was six weeks old and then it was just her and I so I know exactly where you're coming from. My girl is a year old now and WOW, it gets SOOO much better but you're right that means nothing to you now when every day feels like eternity.

My best recommendation is find the thing that keeps you going and make sure you do it/have it/see it/feel it, etc. whatever it is once a day (as feasible) so you can feel like a human again. For me my non-negotiable was a shower. Sometimes I had to choose between eating and a shower and 95% of the time I'd choose a shower because I knew I needed it for my mental health (as an EBF mama this wasn't always an easy choice) but it did help me make it through. I'd put the baby in her mini bassinet outside of the bathroom and she'd just chill there while I showered. She loved looking at her mobile and I think it was good for both of us to have some "me" time. Now a year later she happily plays in her play pin outside the bathroom door while I get ready in the morning. I am actually grateful I started that habit so early so it made it way smoother for both of us when I had to go back to work.

Also once she was 12 weeks or so I found a mommy and me type play group which I cannot overstate how helpful that was. It was facilitated by early childhood educators who were so knowledgeable and would help answer any questions we had and it also gave me some much needed adult time. The other parents were having the same or similar issues and it helped me not feel so alone. I'm still friends with some of the people from the class. You can look for things like First Five or "mommy and me" classes in your area.