You have to have patience in this field.
If you are honest, hardworking, reasonably intelligent and have good common sense, you can do well in the investment field as long as you are not too greedy and don't get too emotional when things go against you.
Graham liked the idea of protection on the downside.
Have a philosophy of investment and try to follow it.
Be sure that debt does not exceed 100% of the equity.
All the publicity about value investing - it's become a very popular thing.