Iv been detailing for a few years now and my regime is still pretty simple
I use 1 bucket to wash but hose the grit off with finger pressure before going back in the bucket. More effective than 2 buckets imo
Megs clay, AG super resin polish, then alternate between dodo juice purple haze and megs tech wax. A quickdetailer after washes as a drying agent. It was machine polished by the bodyshop around 2 months after buying it.
Here's the results before selling it 4 years later
I will add snowfoam and probably a DA polisher to my collection this year