The one thing I've thought over the years is that within a couple of weeks of being over 330-lbs (the highest the old scale went) I should have gone out and bought a new one. It's a dangerous place to be... just a little over. I was more than 70 pounds over before I dared to step on a scale that gave me a real weight. The good thing is that it motivated me to do something about it.
Good luck with your journey!