Peter Hoadley has a fair amount of tools available for free on-line use. The full Excel add-in package is not free, however. The current price is $110AUD [Hoadley is based in Australia and prices in Australian Dollars.]

I bought the package and made back the price easily and quickly.
Still, you can learn a lot with the free on-line tools.

I think you are on the right track. You just have to get hip-deep in the data to understand and internalize how options behave relative to the underlying stock and relative to market conditions.
On the Hoadley site, follow the on-line calculators link. That takes you to the free stuff.
When you understand the information those calculators are giving you, you will be in the top 1 of options experts on the Online Traders Forum.