Mine remained consistently bad from 14-21....

I think it was worst around 17 i was undiagnosed and un-medicated. Self-harming, suicidal, not sleeping much, paranoid and delusional, didn't go to school, ocasionally slept in my closet...

so i would say that was when it started getting worse than it had been, mind you, i had been self-harming and had over 100+ cuts by age 15.