1) I have seen some course about technical analysis, they explain those charts where it would have worked before, saying support brake resistance 'sell'
resistance brake support 'buy' and those chart patterns
2) when we must not use Technical analysis
in simple, my question is , does technical analysis work every time and can we predict every move using technical analysis or times when we should not predict price using technical analysis
Technical analysis does not work all the time, in fact you could show a chart to two different people and one of them will be bullish and the other will be bearish, the reason for this contradiction is that different traders will use different indicators and you can get contradictory signals and it is up to the trader to interpret those signals, now when you should not use technical analysis? And the answers is when the volume of the asset that you are trying to trade is too low, the reason behind this is that with a low volume a person holding a few coins could crash the market and it will be impossible to predict this based on what you see on the charts.