It sounds like you've got your "switch" flipped on, and that is 99% of this battle. Making the commitment and sticking with it no matter what makes all the difference. It's not easy to make this commitment and truly internalize it, I know. And congrats for facing your fears and posting this on the forum--I'm a pretty private person in general but sharing on here has made a big difference for me and I think it will be for you as well.
Now, have you got an eating/exercise plan together? It sounds like your very active and that's great. If you keep a good calorie deficit the weight will peel off faster than you can imagine.
Please consider joining us in the 100 + to lose thread, if you like. It's nice to talk with others who are/were where you're at.
And if there's anything I can do to help, don't hesitate to ask. Until the PM feature is implemented here, you can always email me at firstname.lastname@example.org
47 M 5'8"
May 4, 2010...... 440? lbs. (Start FitDay Size 60 Jeans)
June 19, 2010.... 393 lbs. (First Weigh-in)
June 19, 2011.... 229 lbs. (164 lbs. gone in one year :-)
Current Weight... 185 lbs. (Size 36 Jeans)
Next Goal 169 lbs. (07/04/12)
Ultimate Goal 165 lbs. (12/31/12)
The best exercises for weight loss are Fork Putdowns and Table Pushaways.