I think here I often read that there are many people looking for good indicators that don't paint and also give you a very good signal for 100% truth. It is impossible. So if this happens, the indicator knows the future correctly. It is impossible. If you know how the indicators (each indicator) work, then you know that there is math in the game and they can only reach the target around.
So, you have to have a little trading experience with each trading system that you want to use. Look at the chart and see what the trading system will tell you. And take action or not. and this is the package, in whatever we do, business will never have an absolute strategy that can benefit us. including in the trading business. if we will use the strategy we must test using a demo account first. after the strategy proves to be useful, we apply it to a real account.