It has been said that you become what you think about most of the times. Your positive thoughts and attitude will shape the world around you.
If you desire to change something such as wanting to lose weight or just trying be healthier.
Here is a simple technique(s) to get you started on the right path.
Practice visualization techniques.
The ideal place to do this is in your home. Select a place where you feel comfortable such as a chair or a small mat. Start by relaxing, imagine yourself at your favorite beach.
Feel the warm sunlight, the sound of the ocean waves. Once you are calm and have settled with your breathing, using all your senses, imagine you eating healthy foods, exercising at the gym, wearing your favorite clothes. As well, imagine yourself full of vitality.
If your mind begins to wander or negative thoughts creep in, then simply push them aside. To help you to get into the mood, you can add instrumental music in the background.
If you are a beginner, start this exercise for ten minutes a day, three times a week. With enough practice, you will be able to control your mind.
I believe, once you have mastered your mind, then you have a greater chance of controlling your destiny in life.