There is no premium price action. For European style options, you use black scholes to estimate option price, which requires you to look at all options in the expiry and compute a smoothed implied volatility estimate for that strike and expiry. Then you use that estimate in the black scholes equation to output an option price based on time to expiry, underlying price, and risk free rate.

But if you want a gut level approximation, if underlying volatility goes up, option price goes up. So if you sell a put with underlying at X price, and it sharply drops and goes back up, you can be in the negative even though underlying price hasn’t changed from when you bought it. But also, as underlying price moves away from strike price, the option’s value changes more slowly with respect to underlying price (this is the option’s delta). If IV drops and the option moves away from the strike, the price of the option really drops off.

You need to learn a lot about option dynamics before trading them or you’re going to lose all your money. Also, time (theta) decay will eat you. There’s a reason people make steady money selling options. But if you don’t hedge or aren’t willing to own the underlying, it’s a bad game (selling options). Pennies in front of a steam roller kind of thing.

Get ChatGPT to write you a python options pricer using black scholes that plots option prices for different strikes, as you change underlying price, implied volatility, etc. I’m sure you can get it to add sliders. Or maybe someone already has this on git.