I find most of my questions answered right here on PM. Almost every time I run into something I don't now how to handle, I find that the search tool here will dredge up what I am looking for. On those occasions when I get lazy and just duck-duck-go the question, I usually end up here as well.

The best way to learn Perl is to do Perl. Pick out something you want to do, then try it until you can't get any further. PM is about as close to one-on-one as one can get.

My path was to get the basic storage structures down first: Arrays and hashes, which led to some regular expressions in order to populate them from imperfect file storage formats, which led to .... well, you get the picture. By the time one is done attempting to do some little task, one has learned a great deal about Perl(and CPAN).
Best of fortune on your path to Perl!