If you want to trade technical analysis it is the only way.
What would you do if you would want to read music scores?
You would take thousands of sheets with music scores and study them until you know how to read it.
For trading is the same, you know that you can earn by buying before price rises or selling before price descends.
Then you need to learn to identify patterns allowing you to do it.
I would say more, you need to study your charts until you find ONE pattern. Then you only need to find more if you are bored of it.
Otherwise what would you trade?
How would you set your stop loss level if your pattern is not telling you where you should enter to maximize your chances of profit and minimizing your likelihood of losing?
How would you plan your take profit levels or level?
How will you know where is going to end the current momentum and you should get out from your trade?
For all this you need to study support and resistance basically.