Money management is the easy part. A lot of authors have made a lot of money selling books to traders telling them it's all about money management and discipline. Well, yes, of course it is. But that's not the hard part. Finding a tradeable edge that fits within your trading psychology (such that you can trade with discipline) and the rest is easy. Now constantly research new edges, ways to sharpen your existing edge, and also tests to validate the constantly validity of your edge.