The more indicators I use the worse it is - they go against each other, one telling me to sell another to buy especially on different time frames. Haven't figured out the strategy yet.
Indicators don't ask you to execute, you make the decision.
Professional traders don't use all the indicators, they initially only try them all with small values and then evaluate and determine which one to three indicators produce the best profits according to their trading style, then they'll use them onwards.