This lady in her own words "was massive"!
Imagine how difficult getting started on a weight loss journey is when you are really big. Her mindset must have been incredibly focussed as well as her determination and motivation. Watch her video and listen to her story and then ask yourself are you ready to start your journey. If you are ready then prepare yourself, research, research and then do some more research. Educate yourself on what is required for you to start and complete your journey to get to where you want to be.
Your weight loss journey is going to be difficult and there will be sweat and tears along the way, but if you are informed and are anticipating the pitfalls, then when they happen you will be ready. By being prepared you can stay focused and if you are focused then motivation won't be an issue.
You can do it, if you really want to, thousands of ordinary people have done it before you and thousands will do it after you...... go for it!