I’m falling into my anxious state.

I feel like I’m having a mid life crisis (I’m 22 so technically a quarter life crisis) I just have this urge to work hard and accomplish everything fast. I want to prove people wrong and show that I am okay and I can each my goals. I just feel like idk I hate having people that I know talk about me or belittling me calling me a child when I’m far from it I have a fiancé 2 kids and can fully support my self if I need to. But having someone call me immature and a child pisses me off so much