Your gut feel has nothing to do with proper trading. Diversification across markets is always better than success in just a few markets. Sometimes one big trade could make the whole year. Diversification is wise, but don't ignore the opportunity that may come in one market. If you don't trade a lot you will lose the edge.
Trading consistently is the key to success.
You trade when you are supposed to following a system. You don't trade just for the sake of trading. Needing money is a great motivational tool to achieve trading success. All available information about a stock or commodity can help your trading. The key is the price.