How to do you make friends again?

When I was younger, I never really thought about this question. Since when i was young, i come to friends and friends come to me. But nowadays, that i am older i suddenly realize that i have no friend or best friend at all that i can share my secrets with without any plasticness or filters. I realized that i am all alone without my family and sometimes as being the middle child i am overlooked so i wonder since i have a messed up fam. Who can i turn to? And its friends but the problem is i don't have REAL friends or friends at all now that i am a little bit older. So how do you make friends again?