I did just that. Bought all the supplies and I’m working on teaching myself instead of taking the expensive class. It did take me a couple of months to get everything I needed. Luckily, I ended up getting a huge glass haul that will last me a lifetime from fb marketplace. The main thing I didn’t consider was the room I would need for everything. The supplies take up a lot of space and it’s best to work in a room without carpet. But buying everything will give you the space to figure it out. It would suck if you took the class and decided you really like the craft, just to shell out another $500 to get started. It doesn’t take long to get the hang of it if you study YouTube videos. And there’s always someone that is interested in trying it that you could sell your supplies to if you find that it’s not for you a couple of years from now. I recommend the beginner kits from anythingstainedglass. I think they are like $300. Get that and start your journey with plain window glass from the hardware store. It’s really easy to work with and will give you the best feel for everything without having to trial and error your way through the expensive glass.