I’m going to be biased and say you’d be better off reading a book. I may be self-projecting but I don’t think these schools have produced any real developer who didn’t also invest heavily in self-development.
I agree with @xolubi but I guess it also depends on how you learn. I know couple of friends who learn better one on one … Perhaps you should experiment with online courses and books for a month and see how that goes.
I agree with xolubi. I attended NIIT and I must say that I learnt so many things regarding IT but coding. When it comes to writing the code I had to invest a lot of personal time.