motherly criticism 2

I want to write but I can't.  I turn on the computer, even click on Blogger, but laying my fingers on the keyboard exhausts me.  My mind is relentless.  Who am I as a writer?  Do I have anything to contribute?  Will anyone take me seriously?  Is this the death of my blog? Old habits resurface; I put my pen to paper instead.   I have failed at so many things.  Must I also fail at this?  And so soon.