Nick Carter says his drug use was so bad it screwed up his brain … and he blames Paris Hilton.
Nick — who just wrote a memoir, “Facing the Music and Living to Talk About it,” — says in 2003 – 2004, when they were together, Paris “fed my worst impulses as far as partying.”
As for what kind of partying … Nick says it was all about cocaine, ecstasy and HUGE amounts of vodka — often a large bottle every night.
Nick — who”s been sober for the last 5 years — says the ecstasy has screwed up his life. He believes the drug messed with his brain and that”s why he”s suffering serious bouts of depression.