Do people in their 30s experience emotions like this?

I'm 28 years old now. Can't believe that I arealdy reach this age. The age which brings alot pressure. You can't freecare anymore. Instead, you have to behave like a real "mature person", you have to get married to reassure your parent, you have to make money to pay the bills, you have to pay your own debts, you have to learn how to give up some things or some relationships used to be important parts of you life. I'm wondering that other people like me also experience these feelings when turning 30 years old?

Have you ever felt getting lost? You set goals, then you failed many times. Again and again. People come and go in your life, then you are the only one person that you can rely on. As an introvert girl, I enjoy private time rather than hanging out with people. I like hearing people telling about their stories rather than telling about my stories. I love writting my thoughts for my own. I love exploring this world by my own ways. I always have the feeling I can do more than that, i have more potential than i can imagine. However, how can i release them? How can I develop my strengths. Somebody can tell me how?