No-one should take pride in ignorance. As photographers, we write with light. It’s important to understand how light works, and how to use it to create the pictures we want.
One of the best ways to learn lighting is by reading a physics textbook. There is no mystery. You will benefit from thinking about light as energy.
We focus on using the lights that are already available and if necessary, adding more. The sun is the best light source. It is bright and covers the whole spectrum so colours look natural and rich.