A lot of answers here are about the skills you’ll learn, which is all well and good, but it sounds like you already know how to program as well as most CS grads. What you don’t know how to do yet is interact socially at a high level with college grads, and that’s something you can only learn in college, and will likely (I know there are exceptions, but they’re rare) benefit you a lot more in your career than knowing how to build a discord bot. Also, college can be really fun, and that’s worth a lot.