Anyone here trade professionally for their own account?

Or work at a proprietary shop like First NY Securities or Bright Trading. I’m wondering if anyone had any experiences at prop shops they would like to share? Are they scams? If you do trade for yourself, I was wondering how long have you been doing it? How long did it take you to make it? Is life good for you? I’ve heard a range of stories that it’ll take 4 years to be good. 1st year will be break even or you might lose your account and that’ll be tuition. Any good books to recommend?