Classmate, can't your school offer general physics? If you drive, you just need to finish the general subjects. New concept physics is the simplest course in general level universities. Undergraduate physics department mainly focuses on medium theoretical physics, that is, the four major mechanics. This is a time-consuming thing, and you can't learn anything if you swallow it. Let me talk about myself. I am in electronic technology. Just because I am interested in physics, the school just opened the second major in our year, which gave me a chance. In my sophomore year, I dropped all my classes and conquered quantum mechanics. It is extremely painful to keep the courses of this major intact, teach yourself quantum mechanics and do countless exercises. In my junior year, I taught myself electrodynamics and statistical mechanics, classical analytical mechanics, quantum optics and solid physics, general relativity and differential geometry with the special course of 10. I basically live an inhuman life, and if I am interested, I will finish it, and I will be ridiculed by others, and I will bear a lot of pressure. Fortunately, the boss of the department of electronics and the boss of the department of physics have given me great support and are always willing to answer my questions so that I can stick to it. When I was in senior three, I published a paper on physics in a Dutch magazine. Because I decided to cross electronics and physics, I finally chose quantum information and quantum computing, and I am going to apply for a Ph.D. in physics or a Ph.D. in applied physics in the United States. My understanding is that once you make this choice and your major is not physics, you will pay a very high price, because if you give up halfway, you will give up all your previous efforts and get nothing. Come on, the above is just to encourage comrades.