If you were able to enroll in a commercial form of study and only in a branch, then this indicates that you have a low level of training within the school curriculum. You also write that you would not like to move into the field of mathematics, but are interested in software engineering. I want to make you understand that for a successful career in engineering, you will still need mathematical preparation within the first two courses of a physics and mathematics university. The volume of this mathematics puts the brains out properly. It will be very difficult without this, because other guys tend to have good schooling. You cannot immediately "learn from what" you think you will be doing at work. You cannot foresee which company you will be hired in five years from now. It is also difficult to foresee which technologies will be relevant in 2025. But you need to be ready for this as much as possible. So calculus, analytical geometry, linear algebra, differential equations and the theory of a function of a complex variable are the surest and simplest way to "put" the brain in the right way.
Focus on the School of Data Analysis (SHAD from Yandex). Just keep in mind that there are many - these are students and graduates of a bachelor's degree or a specialty degree from MIPT and physics and mathematics faculties of Moscow State University. It will be easier for you if you still have a comparable store of knowledge and skills. It is problematic to get an outlook where I learned to code a client-server only by "tutorials"
I would like to ask experienced people what to do. That's the point. I want to become a software engineer the question is how best to build a career and life. Now I graduated from school and entered the Mytishchi branch of Baumanka (Lestekh. Former). It is still easy to study, but I am interested in knowledge in my specialty. Faculty - Applied Mathematics. On a scarf. Alas, it didn't work out with the budget. Parents pay $ 180 a year. The family is not rich but we are holding on. Will something improve if I transfer to the main baumanku or hse. Is it worth it. In the main 280k per year, but is it worth it. Another question in the direction of software engineering - I want to go there because I don’t want to do a lot of mathematics on the PM. Is this a good plan. What would you do. At the end of my studies here I want to work live study abroad. Is there any point at all then to study here or is it worth flying to Europe right away.