Yes, genealogy is very addictive. I was active in the hobby for a long time before I gave it up, due to the fact that it's also a somewhat anti-social hobby. If you're doing genealogy correctly, you'll spend lots of time in darkened rooms of libraries (known as the genealogical section) , as well as tramping through cemeteries. It has been rewarding, but there was a point where I had to say, "Enough is enough." I had to get outside, breath the fresh air, and talk to living humans.

Gilmore is correct. Do not go by what you find on the Internet. You can use it as a guide, but not source material. You have to do the leg work on your own to be certain. Take nothing as fact until you have a real document or other secondary or tertiary source (well documented book that lists primary sources, for example) to prove something.