It's impressive when someone publicly declares a goal like this one. You go, NapCat!
One thing to watch: sometimes if you start an exercise routine concurrent with the diet, the actual weight loss isn't quite what you hope it might be. That's because you put on muscle, and muscle is way denser than fat. When you're replacing fat with muscle, the pounds may not drop off really fast. So you might want to consider taking some measurements and tracking the inches you lose, too. Having more metrics can be comforting when you encounter those weight-loss plateaus, which always seems to happen when you try to lose weight.