I started out at 287 lbs - at only 5 feet tall.
Back then, I made my *main home* 100 lb club, in fact I still hang out there a lot.
I think you will find MANY people with your numbers and similar ones. It is chock full of support, encouragement, advice, and camaraderie. There is much to gain from being there amongst people who are at all different stages of this journey. Please take a look, pull up a chair and get comfy.