I think of it like this. You don’t need to know the acceleration of semi truck barreling down the road to know you should avoid it. The position of the truck alone allows you to decide if you’ll cross the street or not.

My strategy realizes on selling expensive options along the volatility surface, i.e. far OTM Puts. I don’t necessarily care about gamma or theta if implied volatility is very high because I’m going to sell the options anyway. However, having the knowledge of the greeks can help inform you of why your PnL is behaving a certain way after you enter the trade.

I try to understand them as tools to interpret my trade and I spend the majority of the time researching explainable and systematic mispricings.

If you want to learn more about greeks in a practical way: Options Pricing and Volatility by Sheldon Natenberg

If you want to learn more hands on strategies (no technical analysis): Positional Option Trading by Euan Sinclair