I agree with the other respondent to let someone know about your addiction to cigarettes. You do acknowledge that you are addicted to them, and hopefully you will have had enough and will want to get outside professional help such as from a licensed counselor to find out what may have led you to want to self-medicate in that way in the first place. Some people start smoking in order to try to become accepted by their peers or even to try to help themselves to feel better emotionally.
The local hospital(s) may have a smoking cessation (to stop) program which should include group counseling and journaling. It is imperative that you talk with your guidance counselor on the next school day and/or your parents so that they can help find the best way to help you to help yourself.
This site has some tips on quitting smoking: http://www.smokefree.gov/tools.aspx
This other site has some more information about all of the chemicals and toxins in cigarettes: http://teens.drugabuse.gov/facts/facts_nicotine1.php
For a free 12-step group called Nicotine Anonymous (based off of the 12-steps of Alcoholics Anonymous but a separate program): http://www.nicotine-anonymous.org
On a slightly different note, please also do NOT inhale any types of fumes or chemical vapors known as 'huffing'. Not only may a person die from inhalant use, but the individual may get Brain Trauma as with my friend who has a Traumatic Brain Injury (TBI) from huffing at the age of 12, now in her 30s. Other risks include sight loss/blindness, heart/liver/kidney damage, seizures, limb spasms, hearing loss and death, all of which can happen after the very FIRST time of use. For more information about the dangers of huffing: http://www.inhalants.org
Please take good care of yourself and make good, Healthy choices in life
