This is a very informative video explaining techniques for creating a servitor for your protection or anything else you would like to have assistance with. Children are experts at creating servitors when they invent imaginary friends to play with. Creating servitors is basically the same thing as creating an imaginary friend except you will want to be much more detailed about the task it is about to accomplish. A servitor is like your own personal assistant to help you get what you want or at least pave the way and remove any blocks that are in your way.
A really good book that I have read that teaches servitor or entity creation is a book called Creating Magickal Entities by David Michael Cunningham. Between pages 84-87 is a detailed entity creation worksheet that will be helpful in creating your servitor if you are just beginning this kind of magickal work. Click on the link below for more information about this invaluable book.