Hi, Why don't you begin a journal using your word program on your computer? Tell yourself as you write that this is only for you so you will be honest and candid, then when you have a few pages, edit them and if your ready, start posting them as a daily blog, or if you feel like it is professional enough send it out to magazines, or publishers? Try Writers Market for sources to sell your story to. If you don't feel that your writing is good enough then consider hiring a ghostwriter (try elance.com), to write your story professionally and get it out there to readers.
Good luck in telling your story, maybe by sharing you can save someone else the pain or let him or her know they are not alone. I hope you find what works for you.