That's pretty much my story, although I think my teen acne was worse than the adult stuff, but only a little bit. I'm also using a generic Retin-A cream, rather than brand, so maybe one of the "inert" ingredients in the brand-name stuff exacerbates skin conditions.
For me it’s the Retin-A because I tried several different brands and every time I have used any cosmetic with Retin-A I get serious breaking out.