Need help with this ?

How can I have friends when family is most important? Like I don’t know how to have them. I am a 29 year old female and I have always struggled socially. This goes back to when I was like 3 I do have one good friend who says she is not going anywhere. We have been friends for almost 5 years and she really accepts me for who I am but even I have problems with our friendship because of struggling socially still and I also overthink too much