First of all, you should know that a problem person must have an economy if he wants to survive and live. If you don't worry about these things, then do what you like. No matter what you exercise or specialize in, you can't become a climate. And you need to choose a career that you can do for a lifetime! If you work hard for food and clothing, arm yourself with knowledge, but don't just learn. Society is not as simple as the book says, no matter what you do, you must have knowledge! A person's life is not just about getting into a good university, please take your life seriously!