First of all, I think you should study engineering according to your problems. If we consider the treatment, the current research institutes generally can't catch up with universities. Of course, it also depends on the specific conditions and departments of the schools. In the long run, universities are relatively leisure and less stressful. Especially if you are a girl, you'd better work in a university.

You'd better continue to study physics. As far as Beijing is concerned, the treatment of graduate schools is not as good as that of universities. Your professional employment is really narrow, or you don't have to study for a doctorate. There is also the degree of your love for your major. Go to graduate school if you like. The general hospital is Qingshui yamen. Hehe, you can try to contact these two aspects. After all, sometimes the specific situation is different.