Micellar water vs. Cleanser

I have oily and acne prone skin. I've always used cleansers twice a day (AM/PM), so I decided to test something. Knowing that overwashing may cause an increase in the oil production, I wondered if this could be one of the reasons why my skin is so shiny and greasy-looking just a few hours later. I had just received a witch hazel water from Dickinson's, so I put it to the test. To my surprise, my skin loved it and wasn't as oily and shiny as before, when I used cleansers twice a day. So I got the Bioderma Sebium H2O and the same results were observed. Apparently, I found a good, simple, and effective way to at least control the oiliness, but... Two or three weeks later, I started noticing pimples (small and painless, sometimes 2 or 3 at the same time) on my face, which is kinda odd because my acne only acts up a couple of days before my period, and that wasn't the case. After reading some articles, some said micellar waters are more than safe to use in the mornings, when you don't have a lot to remove (makeup, sunscreen etc.), while others said it will still leave behind residues from your night routine products, meaning they are not good "substitutes" for morning cleansers. So now I'm really confused. What do you think?