Hello everybody. I have a BSc in physics, I tried hardly recent two years to get high scores in GRE/TOEFL exams to get accepted in U.S. and continue my education in physics,however, I rejected badly. First I thought by myself to leave physics, I gambled whole my future for physics and now I'm trapped in a bad situation. Now, I think that I should study physics by myself without an institution. I'm interested in String Theory. Is it possible to map the path that I should pass to reach the point that a PhD student in string theory should be? Please include the courses and best books for that courses.