Does Technical Analysis Really Work?

I'm trying to learn to trade and as you guys know, most of the internet on the topic is all about technical analysis and how it defines the market movements. But on the other hand, almost any experienced guy I've talked to to had a chat about technical analysis simply says it's all horse shit. I'm really confused on what should I do because I don't want to waste my time learning something which might not even be of use once I start to trade. I want you guy's opinion!