When I started trading, I used many different indicators, sometimes at the same time. But one day my mentor said. If your chart has a lot of different indicators, then it means that you do not know how to use them.
The main purpose of each trader is to define a signal for entering and exit. there is nothing bad to use different indicators, but, there's a significant fact that no one is working perfect. Sometimes any tool will make mistakes and trader should realize it and try to predict.
Do not be greedy and invest in your business as much as you can.