There is no fun in writing about mistakes that beginners make when they are learning a skill that requires talent and luck. Why ? Because they do not read that . They should not read that as it only hinders the prospective of their growth. But as a few of them advance in their craft , they certainly look back and notice handful of mistakes that could have been avoided if they had known earlier. Which in return would have saved a hell amount of their valuable time. So they write about it (or make video or choose a medium of their choice) and share it with beginners but again, beginners rarely give heed to these advices and and soon forget. These skills such as investing, singing, dancing, writing or life, require a personal strategy, that can only be mastered by doing it your way. Have a good time while you do it. By the way, what happens to that material addressed to beginners about " 'those' mistakes" ? Intermediate learners read them and get nostalgic. Weird.
More later!