What were some mistake you've made in real estate investing?

[Lauren Lucas]

I'm going to start off by saying that I am extremely new to social networking sites, I have none but this one honestly and I'm 20 years old. I want to make real estate my profession. I am very knowledgeable of what to do ( I think ) but I'm more interest on what I must avoid. My main worry is; is school a essential? I am currently attending a university as a sophomore and I find myself not at all interested in school but fascinated by economics. I've always been called a "hustler", always made ends meet, always been told I'm manipulative, and that I constantly think of new ideas. All I talk about is real estate, how I would make a profit, how I would get people interested in my properties, I even have a business plan that I've been working on for a year (that I'm constantly changing), but I want to learn from the wise; What should I avoid doing? What are some of your biggest real estate regrets?