Thought it might be useful to share my vast experience on this subject. At one time or another i have taken most substances on this planet, legal and illegal, ranging from weed all the way upto heroin. I was addicted to substances for about 10 years. I was mainly addicted to heroin which destroyed everything, my family, friends, home, job the lot. I was homeless on and off for about 7 years etc. The turning point in my life was when i started to look back on what i had achieved with my life and i started to cry because i realised my life was going nowhere. Now if a hopeless addict like me can still be clean after 2 years, be in college have my own flat and now have someone who actually loves me then there is hope for everyone!!