First time mum- first time staying at home

Prior to my baby who’s only 11 weeks. I’ve always been working and been super independent. I went on maternity leave with no plans of going back to work. I love most aspects of being a stay at home mum but some days it’s really hard to get the hang of always being home with no routine outside of living from one feed to the other. I tried going for walks but it’s too cold to go daily and sometimes it takes too much out of me just getting both of us ready that by the time we’re ready, I don’t want to go out anymore. I find myself grieving having a routine outside of the house and finding it difficult to find my new identity as a mum whilst holding onto some parts of my old self. I don’t have mum friends so it feels like everyone’s life is carrying on as normal and I’m trying to juggling this new identity. Does it get easier with time? How did you guys adjust to becoming a SAHM? How did you make friends as FTM?