I am pathologically private to a fault. Growing up with a private family, then becoming a private adult, made it difficult to be vulnerable. There are moments that changed that for me.
Going into therapy was one. I realized I could identify emotions and triggers in an environment that was safe.
Then came my son. I had my son and giving birth is a real eye opener. You spread wide in front of strangers (though they are medical professionals, they are strangers to you) and bring into this world a life for which you are responsible.