A logger is a person whose job involves cutting down trees. If you like using a chain saw, then maybe you should pursue a career as a logger.
If you're a logger, you'll use chain saws to fell trees or split logs into pieces; operate a skidder, which pulls large logs out of the forest; load logs onto trucks, or drive trucks loaded with timber. There's also a different kind of logger in the world of computers, a program that makes it easy to keep a list or record of things. This is closer to the original meaning of logger, "one who enters data in a log."