Successful investors did not begin with success, it was something that took time and struggle before they got it right. Some new investors jump around to too many trading strategies and have no real focus. They can be found going from put buying to multi leg spread trades with the thought that the more complex their strategy is the better chance they have of success. For these people it is their broker making the money, not them.
Those who are successful do not know everything about all trading markets, they are focused on just one. In this way they become an expert in a few or even just one trading strategy and understand when and how to make their move.
It is possible to focus on just one trading option and become very good at only buy calls and short term stocks. This learning curve can be expensive but eventually you learn and do well. If you can be proficient in reading stock charts for instance, you can create a option trading system that works for you can make use of your trading rules that are consistent. Whether you trade up, down or sideways, you only need to know a few trading strategies.