School worth it?
Well, I did finish my course in evening school in electronics, while during the days just doing web development as a hobby. I ended up spending much more time doing web dev than I did electronics, and well, as you can see it got me into web development, to which school itself didn't actually contribute anything. I've been in employed in web development for over a year now, and I'm making a respectable amount of money from it, given there was no formal education behind it.
I may just have gotten lucky, but I think it plays a big part if you properly dedicate yourself to a field so you can show you know what you're doing. The trouble here is that in order to just get good at something on your own (non-professionally), you need a financial backup as something needs to pay for living. For me that was living at my mum's, but knowing just how glad you are not to live with your parents I'm not sure that'd really be an option.
I guess all I can conclusively say on the subject is that with dedication and something to show for it, you can get somewhere. You only need to have the circumstance that lets you dedicate yourself to something.
I have to add this though: what my mother supported was me going to evening school. She wanted me to get a day job too (which I briefly did). This career path wasn't exactly planned. I wouldn't expect your parents to really support you in pursuing something on your own, on their money. I hope you manage to figure something out, just don't drop out of college on a whim; think things over properly.