Who is JWH and JWHWZ?

Have you ever seen a sad girl shuffling her feet through town; Wearing not a smile; but a frown; I have words that I hope you see; To help you know that this girl is me. The word "memory" for me is quite an absurd noun; That's why I need to write everything down. My life has always been full of little notes; Because it's even hard to remember tiny anecdotes. I don't know how I have gone so very far; When my head and body have so many surgical scars. You may never see me; you may just read my words; But, I need to make myself heard. Because I believe I have a lot to say; That may end up changing someone's day. I have no desire to be seen; Because I am often very mean. But, if I am able to hide behind my wall; I can be, very much, a doll. That is what schizophrenia is all about; I might as well make myself useful, because depression won't let me out! Besides, in some ways, I am shy; And, if I'm seen; I'll probably want to cry! Despite the many names that I have written with my pen, My identity is "Joy Willa Hatch" or "Joy Willa Hatch Zimmerman"!