How can I make Custom Instructions for my MOC?
LIC is the Lego Instruction Creator 


it's a tool some people use to make instructions. 
I would say it's for "power users" though, so it may not be for you.

If I were you I might change the title of this question to something indicative of your search for someone to do this work for you. 
As you are probably aware, there are Lego forums which are devoted to MOCs -- so I would solicit for some help there  (Try https://rebrickable.com/forum/ )