My core question is about English learning methods and paths: On the pace of learning: Am I too aggressive? For example, after practicing the N, L, R, TH sounds at AMA, I would involuntarily capture all the relevant consonants while watching a movie (like “red sports car effect”), which made me wonder: should I focus on the sound I am currently practicing (like TH), or can I capture all the learned consonants at the same time? About the learning path and content: From basic teaching at PIRF to doing Daily Dictation, is this the way to go? At this stage, should I focus fully on pronunciation, or can I understand techniques such as “sound swallowing” in parallel? For example, I am confused about how the strong n in I didn't even have a name affects the pronunciation rules of t and d. I learned that there are “strong sounds” and “weak sounds”, and began to notice the phenomenon of “stop sounds”. I would like to know, what are the specific rules of this type?