Hi again, colonics are great, and that's how I make my living, so I am an enthusiastic advocate of the benefits of colonics. That being said, I can understand that you may be a bit afraid to try an enema for the first time, and you are not alone by any means.
I have counseled many people over the years I have been practicing colon hydrotherapy about the benefits of home cleansing using the enema bag or a home colonic system who have been scared at first. There is a lot of misinformation out there. Once they try an enema for the first few times and become familiar with the procedure their reaction is almost always something like "That was a lot easier than I expected." or "I wish I hadn't waited so long."
Following are several links where you can find some more information: