Please take a deep breath and relax, and don't make us have to stop this car.....;-)
I learned as a kid, partly from my dad, with no classes, and mostly by making mistakes in a Turnabout woodie (they all were, back then). Then raced, then raced and coached in college/grad school.
Now I teach ASA Basic Keelboat part-time. There are many ways to learn, and home-grown is one of them. You learn your mistakes the hard way, as I did, so you never forget them. That's good.
Or you can take the class, and benefit from the mistakes I made the hard way without necessarily having to make them (or at least all of them) yourself. That's also good.
So, choose your poison. Each is "good" poison. But I think I learned better and faster as a kid than I would as an adult, with more demands on my time and attention. If starting out now, I'd probably take the class, since I would have fewer years left to "uningrain" bad habits than I did decades ago.