That's what I thought before that you have to learn all the indicators to become a profitable trader. I learned many indicators but instead of making it easy for me to trade, it complicates my trades. If you're going to use an indicator to determine the trend, you can either choose moving averages or Bollinger bands, no need to use both of them in the chart because it's useless.
And yes, emotional stability in trading is very important to be successful and that's why some people says that it's 90% psychology and 10% TA.
We struggle to be the better version of ourselves, there's absolute high competition in the market, and it's our duty to remained fit for the challenges coming our way. Talking about trading indicators, it's more complicated as it seems, there's something about this crypto space. The more we learned and adapt to new strategies, that's an easy path to access steady losses. So to be on a more safer side, we should learn a particular strategy, repetitive practices on it until we master it. That's the only way we can start earning from the market.