This can be a hard question to understand.

You absolutely have complete free will... however, there are many pieces of you that have inertia that will keep you going in the same direction.

Your subconscious, which you programmed, is trying to achieve the goals you set. And will continue to go thata way, until you reprogram it.

Your view of yourself could be fat and lazy, and so your subconscious hears fat and lazy and runs your body to be fat and lazy. Its like EVERYTHING in the world progresses you to be fat and lazy.

To change this, you have to change your view of yourself. "I am a slim and active person". And you have to keep visualizing this until your subconscious is reprogrammed. You also have to get into a routine of working out and eating healthier every day.

You have to do this because your body and your subconscious, both parts of you, are still heading towards fat and lazy. Although you can change your mind about where you want to go, you have to get all your pieces to go too.