When I was a teenager, my skin was generally pretty good, I only cleansed it daily and thats about it. I was really lazy with the whole toner and moisturing shabam. I had occasional acne around my T-zone area but mainly it wasn't too bad. It didn't cause too much of a problem for me since its just a typical thing when we hit puberty.
As I got older and over the last two years my skin has had a drastic change. I've gotten the dreaded adult acne, with really bad flare ups. Especially last year during my exams it was horrendous. I have really deep scars now because it was that bad. Generally flare ups would occur during really stressful moments and also around the time of my period, and takes more than a week to settle. The acne would be really red and inflammed and it hurt like hell.