history: I suffered from such terrible acne when I was younger that thankfully, I rarely ever have when I started college. I suffered from such terrible acne when I was younger that thankfully_comma_ I rarely ever have when I started college. That's really bad_comma_ but really good that your faced didn't turn out scarred for life. 
current: Well, I have some scars but at least I don't have acne anymore.
next: True. It is quite terrible to have acne. Mine is so bad that I can't even see.