In this case, absolutely jump in the deep end. Find a way to get RSS feeds, and a way to display them -- there's probably libraries for either, however you plan on doing them -- and try to process them in between. Start with something small that works, and add functionality piece by piece, careful to make sure each change you made results in something that works. If you understand each piece, you understand the whole. Every piece you understand, you've learned something.
About "being an expert" -- programming is a very, very broad topic, with far too many different technologies and libraries used in different situations, so when even "experts" work, usually only a tiny amount of their work falls under their actual "expertise" (as in what they could do blindfolded), and they are always Googling what to do next. So when you do that -- constantly Google what to do next -- don't feel like you're not an expert.
I guess what I'm saying is, (perhaps unlike other fields) the body of knowledge in programming, not only that exists, but that any typical work involves, is so vast, there are no "experts" that have intimate knowledge of all of it.