In fact, the mathematical analysis of engineering (high number A) is similar to the high number B of Tongji version, so don't think your version is difficult. As long as you listen carefully, sit in the first row of each class, do your homework on time (even if you copy it), and teach yourself every day, you will be basically fine (but it depends on whether you can do it).

I don't think there is a really satisfactory major in the world. You envy studying this major, but you don't know that students will complain, but you just don't know it. The whole freshman school is basically a basic course, so don't worry too much about making up lessons.