Have you tried actually implementing things with it? You're obviously not going to implement a web browser, but basic math, some sort of basic strings, lots of

Have you tried actually implementing things with it? You're obviously not going to implement a web browser, but basic math, some sort of basic strings, lots of other things with a focus on "basic" because even with functions you're working at an awfully low level here? You can read definitions and commentary on those definitions until the cows come home but until you actually use it you're not going to get it. Like most math.