Technical analysis is good but as a trader who is not sure about it, it will do you some good if you leave the complicated chart patterns behind and stick with the basics such as understanding candlesticks, support resistance, volume, and momentum.

I am of the opinion that every trader especially beginner trader should use basic technical analysis principles together with fundamental analysis or other strategies as they have shown overtime to be able to offer insights into market sentiment, but it is not advisable to rely mainly on technical indicators. My conclusion is yes, technical analysis works but they are ineffective as a standalone trading strategy.