Rocket stove in use - everyone needs to know how to build/use one of these for "those" times when there's no other way to cook. (My Junior Girl Scout Handbook showed this stove made with a large coffee can.
It will hurt. It will take time. It will require willpower. You will need to make healthy decisions. It requires sacrifice. You will need to push your body to its max. There will be temptation. But, I promise you, when you reach your goal, it's worth it.