Scurran,
I did some amazing projects using just routers. But unlike you, I know how to use such a tool in a safe and precise manner. You can call yourself lucky for still having all ten fingers. In this precise instance, being sloppy and holding the stick casually really saved your fingers. If your hand was closer to the bit, as to get control over what you were doing, you'd be one or two fingers short by now. It's clear that you were not feeding the material the proper way, which allowed for the router bit to grab and pull the wood stick off your hands. Routers are made to bite wood little by little, not all at once, which is another mistake that ou did. Many passes require a good guiding system; and a single passing of the material trough the router requires an even better if not perfect feeding-guiding procedure.
Get yourself a book on Routers or observe other people working with routers before attempting to do it yourself. It doesn't take very long to learn the basics and be on your own. This is my best advice to you and those who are familiar with routers would fully agree with me at this point.
On the other hand, if you know what you are doing, a stronger router is always a better choice for you, simply because the stronger one would take jobs that the weaker one would not. If you are not very good with power tools you mifght learn that you needed a stronger router only after ruining your project or burning your tool.