I've taken chemistry during (not in high school but at some CC) my HS senior year. However, I've never taken Physics. I'm currently taking CHE my first-year first semester and it is not that difficult. My studying for this class consists of doing the HW and reading the chapter over and over. I predict at least a B-grade on this class. Sometimes I didn't go to lectures because of poor habits (ex. sleeping in class, being distracted). I also didn't go to Recitations (not a requirement BTW). Still manage to get high B's on exams.
I have to take General Physics next semester, which all engineers have to take. I plan to read and study my sister's HS physics book over the winter break. And use Khan Academy or Course Era. I hear it's Cal based, IDK if being good at Cal means anything in terms of being successful in PHY. I will get an A in Cal I this semester (don't to lectures for Cal as well).
BTW, I'm not failing any of my classes, 1st semester is smooth for me but 2nd will not because I don't have as much preparation as I did for the classes in 1st semester. One thing for sure, I will commit to improve my study habits and time management. I'm pretty descent at reading real-life problems, ex. related rates or optimization calculus problems, and actually understand them. Same for CHE, I was able to read the problem and figure out # of moles needed to complete reaction. Again, I'm descent.
I have not idea what to expect for Physics!