I know the pics are the really important part, so I'll keep it mostly to images for now. They tell the story better than I ever could anyway.
This was actually a couple of years ago. Probably 305lbs. They probably shouldn't have even let me on this ride. I remember this like it was yesterday though.

About 2 years ago. Maybe 310lbs. There were things on this trip that I just couldn't do and I missed out on some great experiences.

Probably no words necessary....

At one of my kid's soccer games. It's tough being the "fat dad" who can't really participate in the pre-game practice with the other dads.

About 2 months ago. Roughly 210lbs and with new clothes. I wanted to see what they really looked like.

Taken yesterday. 196lbs. Starting weight was 318.5lbs on 1/1/14.

The thing is, it IS possible. If you can set reasonable goals (I far exceeded even my stretch goals), accept that there are no excuses, understand that you will have bad days, and be prepared to be brutally honest with yourself about your actions and decisions, it is absolutely possible. Just don't ever quit. Ever. Don't start tomorrow. I spent 10 years starting tomorrow. Start today.