What am I doing wrong?

I feel like there must be something wrong with me, I keep trying and trying to make mom friends or just friends but I fail time again and again I feel so alone that I look forward to going to the store to maybe talk with the cashier for human interaction, I try to put myself out there and join mom groups or invite people to hangout but no one wants to make the time for me, I try to text with people and they ghost, I am not sure what I am doing wrong. I have anxiety and depression but other than that I don’t gossip and I am not mean in anyway? I am awkward at first? How do people actually make friends? It seems the preschool moms do not like me because Im only 20 with a 4 year old and they don’t invite me to anything. I guess I just need to type this down for my sanity, my therapist blames the people but there’s no way so many people are the problem I must be the problem and I don’t know what to fix