Feeling alone

I’m 21 years old with a 7 month old . I’m a single mom . I basically lost all my friends except 3 of them after I had my baby . Even with the 3 friends I have now it’s kind of hard to relate to them . I try to explain my life issues to them and they just don’t get it . And I have family that have babies my daughters age but they’re older then me and married so it’s really hard for me to be around them because I really want to be with the person I have a baby with but can’t and it just hurts to see other people like that.

I want to find more single mommy’s my age to become friends with but i don’t know how .