I have always 'gotten away' with having no real friends by saying my 4 sisters are my friends. While it's true that they are my friends, I have realized that doesn't absolve me of Making friends outside the family.
I've just started working on this and I feel so good when I've at least tried. There is so much knowledge and experiences out there and I have missed out on it because of my isolating. I don't know when I will find a friend, it may take years, but I'm trying and that's all we can do.