What is the purpose of my life?
If you look at the world around you, you will see that everything serves a purpose. In general, when you create something, whether it is a house, a song, or a piece of art, there is a purpose or a vision behind it. For example, a chair you are sitting on has a purpose of supporting your body comfortably while you reading this content. But what if you don't know the designer's purpose? You can easily use that thing in a wrong way. For example, you may use the chair for firewood. In the same way, if you don't know your purpose of why you are living, you can easily live your life in confusion, drifting throughout your life, and never really finding the meaning of it. So, it is very important for us to understand why are we here on Earth, or in other words, "What was God's reason for creating you in the first place?"
Once we discover that, then we can begin to understand with what purpose we should live our lives and in what way we should live. Since God is our creator, we'll start off by taking a look there.