well the problem itselft its not just work hard, but i will say its better WORK smart, and i mean really work smart. Fundamentals are in my opinion the really thing to master. Basics shoul be the most important thing to master, since how to use the pen till how to make a line and then perspective and then everything else. in my experience ofcourse, finding free art resources on internet´because im broke and cant affout pay art resources online, there are page like draw a box till some youtube chanles like alphonse dunn can really be helpfully