Is it useful to watch TV and read books?
Of course, it’s helpful to learn guitar by oneself, but it’s better to have a teacher to take an introductory course. Without a learning process, it’s like learning blindly and carelessly. Without direction, one can only do half the effort. After two or three months of introducing guitar, one of the most important points of learning guitar is to keep practicing for a fixed time every day, practicing various pitches and skillfully climbing. Stick to a learning suitable for oneself. Learning textbooks step by step, not by their own preferences to learn, not blindly, otherwise they will only give up halfway.