If this is truly your life experience, it is indeed a powerful and tragic piece of work. And the message comes out loud and clear...that there is no Prince Charming, no happy ending for you.
Having said that, I'll also say that as a poem, you need to decide on a direction for it. You start the first stanza with a sort of rhyme, and then used rhyme haphazardly or not at all in the following stanzas. I'm guessing this was something you wrote on the fly, just a rush of emotion and thought coming out all at once. But remember that even the most emotional poems, the ones deepest and most identified with, have some sort of structure. It's not a crime to edit your poem several times before it's perfected; I don't know that any of the greatest poets ever wrote something as personal as this and had it come out perfectly on the first try. And it's okay to put your thoughts down on paper and want to keep them as is, but that's more suited for a journal entry than a bona fide poem. You have so much depth and so much to say; you could be a poet to rival any if you force yourself to stay within a structure, even if you make that structure up yourself. Also, watch your spelling.
I love this line, especially "my bear"; it really hits home the point of you being just a child.Now I live alone
with no one but my bear and notebook
It holds my secrets
For no one but me to look