I am feeling generous today so here is a passage from Reminiscences that you should read:
The beginner knows nothing and everybody, including himself, knows it. But the next, or second, grade thinks he knows a great deal and makes others feel that way too. He is the experienced sucker, who has studied not the market itself but a few remarks about the market made by a still higher grade of suckers. The second-grade sucker knows how to keep from losing his money in some of the ways that get the raw beginner. It is this semisucker rather than the 100 per cent article who is the real all-the-year-round support of the commission houses. He lasts about three and a half years on an average, as compared with a single season of from three to thirty weeks, which is the usual Wall Street life of a first offender. It is naturally the semisucker who is always quoting the famous trading aphorisms and the various rules of the game. He knows all the don’ts that ever fell from the oracular lips of the old stagers excepting the principal one, which is: Don’t be a sucker!
but dont read this and dont let it sink in because it's rubbish advice.