Many of us have a hard time writing or talking about ourselves. It's instinctive. Most people see any type of positive speaking on themselves as bragging, gloating, or the newest one, “humble-bragging”. A lot of us write because we have low self-esteem to begin with, and talking about ourselves is far harder than talking about our characters. Yet, no matter what you do, if you take writing seriously eventually you will need an author biography
When you write for yourself and only share things with friends and family, you will notice that they don't offer many good critiques. This is understandable... they know you and don't want to crush your dream or say things that might hurt your feelings. On the opposite end of the spectrum is the general public. Behind a computer screen, people can be downright cruel. We've seen some hate filled reviews on Amazon that stunned us to the core. Many times, hopeful writers are too terrified of someone tearing them down just because they could, that they never push themselves to see what could happen.
When beginning to write, most people just open up their word processor and write. Once things get shifted around for the book format, it makes things fit strangely, leaving widowed or orphaned lines dangling and separated from the rest of their paragraphs. Many publishers will not accept books that have too many of them, as it makes the writing look sloppy. There's a simple way to fix this, however!