Talk to other progressive rock fans online. They're easy to find if you use Google to search for progressive rock websites and forums, or Facebook for prog rock pages and groups. You can also join forums for individual prog bands, as these will almost always feature "other band" sections where you can discuss a wide variety of bands in the progressive rock genre and other genres as well. Here you discuss your progress with progressive rock, review your favorite and least favorite albums, and obtain the thoughts, opinions and band/album recommendations of people who may be experienced with the genre. You will find progressive rock fans to be among the kindest, cleverest and most open-minded people online, and they will more than happy assist you in your journey through prog.
Read up on the histories and discographies of each artist, reviews submitted by users for each album, the lists of the most beloved progressive rock albums of every sub genre and from every country, and any other things you might want to know. With enough effort and interest and discussion with other followers of the genre, soon you will be able to appreciate and explore the genre further.