Told a friend to move to my house if he wanted to move but now I don't want him here. What do I do?

Is the reason you don't want him there fixable? If so, fix it. Have an honest and upfront conversation about what it is that is bothering you, lay out what has to happen in order to rectify the situation...not helping around the house, lack of privacy, working etc. If you just don't want to share your space and there is nothing that can be done to "fix" it you should just tell him. Since you offered the place to live you should also offer plenty of time so he can make other arrangements. Moving can be expensive and most need to be able to save up. Maybe even a rent discount would be a nice gesture.

Tell him personally I know he will understand beside you the owner of the house... Just fight for your rights or you will be abused because you are kind and nice to other people...