That is something you have to reach on your own.. you have to get to the point where you just cant bear being in the state youre currently in.
Personally, i have endless motivation; #1 being to regain my fertility so I can have the pregnancy, birth, and family I've always wanted, but I also want to inspire those around me and especially my family, want to be able to go into a shop and wear anything comfortably, I want to be healthy and have enough energy to accomplish the many goals I have for myself both professionally, artistically, and personally, I want to have the stamina to climb mountains and travel the world, and yeah.. I wanna look hot.
I've never lacked motivation, but I have lacked willpower. And I've recently remedied that by supplementation. Now I'm good to go, I'm in the right mindset and on the right path, and I've lost 9lbs in 12 days and feel pretty damn good about everything. I hope you can find what you need to stay the course. It's worth it.