Generally speaking, being interested is a good thing, which can make you feel happy in the process of learning, because people are very happy when they are doing what they are interested in, and you are ready for the postgraduate entrance examination, so it is estimated that you will consider some problems in depth.

There's nothing to give you advice. If you are interested and confident, you can stick to it. Graduate students majoring in mathematics are also tested by people, not the church of God.