Likewise, If a Buy Signal Fails, it becomes a Sell Signal.
A signal that says get out of the market is a potential signal to enter the market going in the other direction. To do this you need to be able to read entry and exit signals as well as know when it is the end of a trend.
When you get out of a good trend then you need to be looking for a trade in the other direction. I would suggest that you wait until you get good strong signals to make the direction change. It could be a consolidation or a retracement. If it is a retracement, then you can get back in going with the trend once again. You may have sacrificed a few pips, but it is worth the loss to have the lack of risk. If it is a consolidation, then you may want to be out of the market until you get good signals telling you which way the market is going.
With a good set of indicators you will not worry much about getting in and out of the market. You can wait until the trade comes to you no matter which currency it comes on.
Many people feel the need to be in the market all the time. To do this you would be lucky if you were only trading one currency pair. If you are trading indicators not just currency pairs then you may have 3, 4, 5, or 6 trades on at the same time. A word of caution, only have as many trades on as your account that you can handle. Do not over trade your account. Furthermore, only trade as many as you can handle, even if your account can handle more. As you grow you will be able to do more trades at the same time.
The money will come, focus on being more concerned about becoming a good trader first. Develop your skills and the money will come.