There is always a fresh challenge. There are no rules It does help if you begin by learning the language. If you were planning to live in France and needed to speak french you would probably start by learning basic words. It is the same with art. It helps to learn the language.
Life is a journey.
Being an artist is a journey. The difference between painting what you see in your mind and what actually appears on the paper is mileage. The more you draw the more you learn to see. The more you see, the more you notice the negative space around you. Everything you do in life will relate to what you draw.