Both companies are engaged in adult art training. You can study anywhere and see your own needs. If it is purely a personal hobby, you can study online. There are so many free classes online now, so choose a type you like to learn, and follow the tutorial step by step when you have time. Even if you go to school, zero foundation is the most basic start. Maybe it's better to follow the online class for a while and do the basic training well, and then go to a training institution or school to study.