The strong major of University of Science and Technology Beijing is metallurgy and materials. If you don't know whether you are a man or a woman, you are a girl. It is no problem to learn economic management. What's good about specific majors? The senior told you not to expect too much. Tsinghua Institute of Technology also gave you more books and courseware according to the script. The key lies in your cultivation in college, playing less games, reading less books, wearing less stockings and running more ... The major in college will disappoint you, but your study life is very free. As long as you want to study at University of Science and Technology Beijing, you have abundant resources.

Ps, it doesn't matter if you think your major is not good. When you are a sophomore or even a junior, you can learn by yourself and see if it is not good. It is no problem to change majors.