How to change your life? People are always frustrated during every life's situation. In today's world, many of the people are hopeless towards their things in life and believe that it cannot be changed. However, you can change your life by starting to learn the master key method. The master key method is a system to change your life within a short time. All habits, behaviors and our mindset can be changed as simply using the master key method. As a person who suffered from depression since I was young, I was totally hopeless and believe that depression will be my life. However, my life totally changed after reading lots of books about the master key method and also development. I will make it simple and compress it into a 4 major lectures. I hope that you will also change your life after studying my lecture.