Not familiar with the products you bought. Generally you want to prep the paint first (use clay bar and/or paint cleaner). Then polish it (using glaze or polish) then wax it (organic/carnauba or synthetic polymers).

From there maintenance and upkeep should be easy dahil malinis na siya. I did a claying and polishing of my friend's 190E recently, dami nakuha sa claybar, even if his car was already "clean looking" to start with. You'll soon realize which panels have more dirt embedded in the paint by claying it yourself. Usually the hood, roof and trunk have a lot, but that also depends on the use. If it gets parked all day at work, then you'll have a lot of dirt there. If it gets driven in the rain a lot, then the sidepanels will have a lot of claying needed.