What were the before pics like? Did you have bad swirl marks? How much did all the bits cost to be able to do it yo self home boy.
The polisher came with those two bottles of polish and cost £135.
Do a YouTube search for dual action polisher or machine polishing a car and there's loads of how to guides.
I've used it on a 15 year old Clio, a 2008 civic, my zs, a megane renaultsport and a 2001 fiesta with no issues messing it up.
There were swirls on my bonnet. I still have one or two deeper scratches but my aggressive pad was too dirty to use today so I only had the medium pad available.
Ps you need to clay before machine polishing or you'll get some contaminant caught in the pad which will do damage
And don't forget to wax afterwards. Claying and polishing aggressively strips the paint of all it's protection