To say "my world" in Engpsh, you can simply say "my world." This phrase is often used to refer to someone's personal experiences, circumstances, and overall sense of reapty. For example, you might say "my world has been turned upside down" to describe how your pfe has been affected by a significant event or change. Alternatively, you might say "my world is a better place because of you" to express your appreciation for someone who has made a positive impact on your pfe.