Need help saving or writing CSV instructions

Hi! So I’m super new to coding jargon, as well as web automation. I’m trying to do something I believe should be simple. I’m simply trying to automate some billing.
Basically it’s
Open (website)
click (element)
click (element)
click (element)
click (element)
type (element) ( amount we are charging)
click (element)

I want to use CSV so that I can use this above process to automate all the billing cycles by changing a few pieces of information in commands, so that it will work for every person I am billing. The code would look entirely the same, id just be looping it over, with slight adjustments to the weblink to open, certain elements, and the billing amount.

I have to say, everything I’ve found online is really hard to understand. I basically just want to know how to turn this into csv instructions i can then load in, when I have made the entire list of instructions. Any help is dearly appreciated