Quote from NoDoji:
The TA naysayers have no logical reason to dismiss TA as worthless or unprofitable because either they're already profitable and if so wouldn't be concerned about someone else's trading methods, or they're not profitable and would be open to learning more about a method that so many are using profitably.
I've come to believe they are either illogical people who enjoy meaningless debate, or they're hoping one of the profitable technical traders will post a precise set of instructions for trading.
TA can be tested. You study significant price swings in your preferred time frame, compile data about each of these price swings including the patterns (S/R, indicators, volume, etc.) surrounding the swings, measure max adverse and favorable excursions and develop a trading plan based on the highest probability setups. You capture screen shots of these setups at the hard right edge and study them until you can identify them immediately without question. You practice trading the plan in a sim account or on paper and if the results resemble the stats closely, you trade live.
If you do this, you WILL find a profitable edge that works consistently over time.
There is no guarantee you'll develop the trader's mindset needed to successfully trade your plan, but there are plenty of options for working on that once you have a concrete plan.