Basicly using indicator will help us to find confirmation signal for our trade. Without any confirmation we could trapped in wrong position for example fake breaout or fake reversal. Some people didnt using any indicator , but still profits because they were familier with market habbit and could identify in which level price will bounce or pullback. Personally i am still use indicator to help identy trend continuation or reversal.
Trading indicators are very helpful indeed, but if we use many indicators in one layer it may confuse us,
that is my experience, because I used Tradingview, and tried to use 6 indicators, but unfortunately it didn't help,
and now I only use RSI and only the Trend line, yes indeed a trader has his own way