Also, in a phenomenon somewhat unique to singing, what you hear just isn't what others hear. For example, sometimes people will modify their technique such tha

Also, in a phenomenon somewhat unique to singing, what you hear just isn't what others hear. For example, sometimes people will modify their technique such that their voice sounds very resonant to them, but externally the sound doesn't carry. Sometimes in these cases, listening to a recording can be very helpful, if not a bit shocking. One of the difficulties of learning to sing is learning what good feels like rather than what good sounds like.