Help! I’m half way there

So I am 23 and have had no real friends. Long story short I had one friend when I was younger and she got a boyfriend. We’re still friends but not like we used to be. Anyways I am very shy and VERY insecure like I literally feel like I don’t have the right to talk to anyone. I got a big girl job at a hospital and if anyone has worked at a hospital you know all the nurses and assistants are beautiful and very clicky. So the beauty of other people made me feel very insecure. But I have been working on it a lot and have made a lot of really good acquaintances. Butt i want to make friends!! How can I take it to the next level? I can only think to talk about work or work situations but how can I make it more personal to move into friendship? I’m so embarrassed writing this but I need help. I’m tired of feeling not good enough I deserve some friends.