Writer's Fallout Shelter

My biggest problem is fear of rejection. It wasn't until I found this site that I even let people read anything I had written. What I'm currently working on I want to get to a point to submit it, but that is again where I'll have the problem because I have no idea what I'm supposed to do.

As of this very moment I've got 82 pages of story not broken into chapters but sectoned by spaces. It is a total of 26,209 words and I'm still going on the story and moving it in the direction I need it to go.

When it's done though (I've never finished anything this large before or even gotten anything to this point before) I know I'll falter out of fear of rejection and just not knowing what to do with it.