Recently single mum

How do you ladies cope being single mums my son turns 1 in a month & me and my partner have been on and off since before he was born but It turned toxic so I ended things. Being a single mum makes me feel so alone I see other families out with their babies as a couple and I just wish I could have that. I really don’t want another man in my life but I feel guilty that my baby will grow up with a dad who just comes and goes throughout his life🤦🏽‍♀️ anyone been through the same thing ? Just wanna know how people get through it 😓