Brenda - Shooting macro is a whole different world. There are a few books on macro photography available at Amazon or you might just want to look up web sites with macro instructions. I don't agree that most macro shooters use a tripod and manual focus. I have never used either and I have taken a zillion macro shots. You don't need a macro lens that focuses fast or is quiet. Those are very expensive options to include in a lens.
Vermilye is correct that you should have a longer focal length for bugs. I recommended the 50mm since it is Canon's least expensive macro. If you want a longer focal length macro lens it will cost more money. I don't even own a macro lens. When I want to shoot a macro I use my telephoto and crop it. The shot of the bee was taken with a 100-400 at the 400 setting which means 640mm. I was about 6 feet away and I cropped the photo severely. With a macro lens I would have had to have been about 3 inches from the bee to get that shot and the bee would not stand for that.
There are extention tubes and teleconvertors you can put on the front or the back of your lens to do macro, but I would recommend you avoid those products until you have used a macro lens for a while.