I'm delving into learning Polish myself but have been taking mostly a whole language, immersion approach. For example, when I was in Krakow I bought myself a book on CD and the book itself, so I can 'read' along as I listen. I use translation tools to put selected passages into English. I also spend time listening to Polish radio. I know at some point I will have to develop some discipline about tackling grammar in a systematic fashion the way you are doing, but for the moment I guess I'm content to as much as possible to get a feel for the language. Japanese is my second language and its challenges are almost completely different... anyway, good luck!