Hi, "Ertzel".
Welcome to the DaniWeb forums. Good to have you here. You will learn a lot here.
I first learned C++ on my own too; however, it is sometimes hard to think up projects for yourself. Working through books, etc. is okay, but taking courses is good in the sense that they push you to do things you wouldn't normally do. And if you want to ever find work in the field, potential employers put a lot of importance in the little piece of paper (your graduation certificate) you get when you finish. Most of the time, it doesn't matter how good you are or how much real-world experience you might have, employers won't look at you without that piece of paper.