My own experience of self publishing is that it is like a place with no real up front honesty. More like a money magnet that attracts those that want to believe they can, and just need some good advice.
I have been fooled by such a foolish attitude. How I would have loved an honest retort that my work was crap needed some hard work before it was up to the standard, instead places like Authorhouse gave no such advice, only sweet talk and people at the end of a phone that knew less than myself. Another place iUniverse even refused to make an alteration after I found an error and returned a call within four minutes of agreeing to publication. 'Sorry it is too late.' What a lot of rubbish.
I have found a place that are honest, do listen do offer help will take on board some of your work, or all of you work, or guide you through the route you want to take. Give them a look over.the link attached