Painting is something that can not be properly explained. It is something you have to just do. The only real way to learn how to create something with colors, a stick with some hair or string on it, and a white piece of rough and expensive paper, is to waste some of it trying. Nothing, and I truly mean NOTHING will look right starting out, it may never look right honestly. Sometimes painters never feel good about their paintings. A trend in painters is unhappiness, often they dislike their creations or themselves or both. Do not stress the details, if you do not think you can do it, try. You will hate the monster you created but eventually the shapes look more like what you intended and you will be proud enough to make a tiny blog about paintings you do. Painting honestly should be done for fun, do not pressure yourself into creating something someone else wants. You cannot make what someone else envisions, it is in their head, not yours. You have a style, a capacity, something unique and unreplicable, but that means you can not fake it. Art is the most honest extension of a person, you cannot hide your feelings from yourself. In the end its just you and the canvas, do your thing.