Before getting started you need to select the songs you will learn from. This is important because there are a lot of potential pitfalls. For example, songs that:
use difficult language which isn’t commonly used
aren’t mainstream (nothing against niche artists, but if part of the goal is to connect with English speakers, it’s probably more efficient to learn from music which would give you a common language)
are too fast (hard to learn from)
don’t have lyrics readily available