Now here's the deal. Your car looks great and you have put all that blood, sweat and tears into it but all that will be for naught if you don't practice good washing and dust removal practices. The 2-bucket wash process is mandatory if you do not want to continually keep repairing your paint. Also, the way that you remove dust from the paint is going to be critical to keeping a black car scratch free. I cover both of these practices in my many videos. For those who are unaware of the proper practices, I highly suggest that you have a look at them.
Good job.