Now that you are not a student, it will be more difficult to study abroad. Foreign universities should issue proof of attendance. Why did you drop out of school? If you violate the rules and regulations of the school or your grades are not good, then you have no chance to study abroad. Did you teach yourself anything at home? For example, what social investigation, or what research results, if any, you can try.

The training courses in New Oriental are the best. TOEFL usually takes three to six months to prepare, while SAT takes so much time. Wish you success!