I got an F in English in the first semester of my senior year but I have A/Bs in all the other classes. I am planning to makeup the F in the second semester. Is it going to affect my admission to CSUs?
Probably, yes. Sorry to be the bearer of bad news.
CSU’s require you pass your a-g Senior courses with a C or higher. I suggest you contact each CSU that you applied to see what your options are or you could be rescinded. Better to be proactive now when you might have some choices then later when you may not have any other options.