Undecided Question

I'm 32 and have had problematic skin my entire life. I had severe acne when I was a teenager and it has recently returned — although not as severe, just two or three random pimples. What products/steps should I use to make my skin look better? I currently have the following products: Neutrogena Blackhead Eliminating Daily Scrub, Shaving Cream, Aftershave and Johnson and Johnson Clean and Clear acne cream. In what order should these products be used? Should I be using anything else? Someone said I need a toner. I don't even know what that is. When I shave, it irritates my skin so I try to only shave two or three times a week. I believe my skin is a little on the oily side. Any suggestions? Thanks!