Every time I try to enhance my English, I get conflicting advice from people, some of whom are native speakers and post reels on Facebook. For example One says: don't say "I'm sorry", say "I apologize". Another says: don't say "I apologize", say "my bad". A third suggests that "my bad" is inappropriate and recommends "my fault" instead. This confusion is really frustrating for me as a new learner. How to deal with conflicting advice? What is the best way to know which expression is appropriate without feeling overwhelmed?