Your task now is to define your major and the target school for postgraduate entrance examination, and then go to the postgraduate entrance examination forum to see which school is better in your major, what is the score level of each school and what height you want to reach.

As for the study planning time, there is a lot of experience in the postgraduate forum, which can be referenced!

Your future plans depend on what you want to do. Do you like your present major or what kind of work you want to do in the future? If you don't want to take this major, you should prepare in advance and study more!