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
I think work or not it is all depends on market. But without technical analysis we only like gamble in trading because what we do maybe only buy and sell and hold if stuck and without technical analysis maybe there are a lot chance people to waste their time in trading. Because what we look in trading is how to get profit in shortest time. But this is only personal opinion from me.