I wouldn't say it's a book I'd sit down and read cover to cover. I recall reading the first few chapters, then just bouncing around the algorithms. It was also the reference book for an algorithm course I did. If you're finding it hard going then maybe go to a course, or lookup some youtube classes.

Edit: this may help "What is the best online data structure and algorithm MOOC/course in C/C++?" https://www.quora.com/What-is-the-best-online-data-structure...