This post is about learning spoken English fast, and not about becoming fluent in 10 or 30 days. I don’t want to disappoint you, but it’s nearly impossible to become fluent in 30 days.
Many who are advocating fluency in such short period either have different notion of fluency or aren’t being authentic. You don’t have to believe me on this. Just try those methods verbatim and see where you reach in 30 days.