Teen weight loss programs are a bit different then programs for adults, mostly depending on the age. However, being a teen doesn't mean that it will be harder for you do achieve anything, because as with any other person on this world, achieving goals is all in the mind.
By saying that it's in the mind I mean that the crucial parts of your path to your goal will be:
Having a strong burning desire is the must have if you want to ever achieve your goal.
Would you really like to change? Are you prepared to invest your time, energy and sometimes even money? Because if you aren't 100% sure, there is a high chance that you won't follow through it.
But there is a way out even if you don't have the desire which would drive you. The first step is to understand that you are the one who motivates yourself and on the other hand, you need to act to be motivated, and not necessary the other way around.
Knowing the pleasures you will experience when you will be happy with yourself and the pain you will have to go through if you aren't happy with yourself will be a driving force in your motivation. Write down the good feelings that you will feel and why, and write the bad emotions you might experience.
Having a specific plan will help you act now, because the worst thing you can do is to be motivated and do nothing about it. With a proper plan you will be able to direct your energy and start working toward your goals.
After you start acting you need to motivate yourself on daily basis. Studies have shown that a repeated act becomes your habit after about 21 days. So follow through the plan for at least 21 days and it will become way easier to make your goals your reality. Also, find someone with the same goal as you have, so that this way you will be able to motivate each other.
Decide in advance what will you do and exactly how. And do it even if you don't feel like it.