:welcome: presser6
With a dark color car every imperfection is going to show. So the fact that you don't want to use a buffer, might be an issue.
Have you spent much time watching the video clips? I found that very helpful when I first started. Here is a link it might help.
Pinnacle Natural Brilliance car care products are made of natural ingredients & modern science! souveran, signature series, carnauba, paintwork
Where do you live? Are you dealing with winter, salt on the roads?
I have been very please with Klasse High Gloss Sealant Glaze, DP Max Wax, Collinite 845 for winter. So if you can give us a better understanding of the weather you are dealing with, you will get better recommendations.