Technical analysis is fortune telling. It is crap. More than that, it is a scam. You can't tell anything about the future by looking at the charts that happened in the past. It is gambler's fallacy. Just because you lost 20 times, doesn't mean you are going to win the 21st game. It is always about the fundamentals. If the fundamentals are crap, the rest has no meaning at all. The price can go up and down just because somebody wanted it to. It don't have to make any sense.
All are for reference only and are one of the factors for us to make the final decision. That is why the same technical method, the same knowledge, but the results and predictions of many investors are always different. Cant say they are completely useless because sometimes the past will repeat like we are expecting bitcoin to recover right after the halving, it has happened in the past as well. But don't over-trust it or abuse it completely. We know technical analysis, know fundamental analysis, and whales and sharks out there know too.