To be strung out

To be strung out - to be addicted to something; to be very tired and worried.

Example - "For most of her teenage years, she was strung out on crack."
                  "By the end of the week, I was completely strung out"

Image - http://www.azquotes.com/picture-quotes/quote-i-might-be-too-strung-out-on-compliments-overdosed-on-confidence-started-not-to-give-drake-63-87-33.jpg