Since you didn't mention it(but probably do do it) do Reality Checks often whenever one of your dream signs appears or something strange in general(could be as small as a light not turning on when it should)happens and be AWARE of strange happenings but as your already somewhat fluent at DILDing you'll probably already know this.
Try DEILD(dream-exit induced lucid dream) this is the method I used to get my second LD although i did try to move too early and went back to the waking world .
Also try meditation(not neccasary, it can be helpful though) and be SURE to look around the tutorial section for tips, most people take tips from each tutorial and make there own method which works best for there self.
Hope I've helped