When did adulthood kick in?

Hey I wanted to ask other women, what age were you when you got your full maturity as a woman? Meaning knowing how to balance work, relationships, life, education all along with the struggles of life? And what situations made you strong enough to not run from challenges? I’m 21 years old btw. I feel I’m just now ready to stop running from things and face them. For example I would run to a different job when I had managers & employees that didn’t like me. Etc I’m just now feeling a push to fight. Is this normal?