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.
Put a dollar in a jar every time you work out. Set a dollar amount goal and then use the money to reward yourself with something special like new clothes or dinner out. Set a time goal too, like you can add a dollar after every half hour.