Do not conform any longer to the pattern of the world, but be transformed by the renewing of your mind. Romans 12:2There are lots of people who don't remain true to their convictions, morals or principals and instead give in to the pressures of society and life.
But if you do, this not only do you let yourself down, but you violate the character that God created you to be. And in order for you to achieve true freedom in life - true freedom from your addiction, you must not conform to the ways of the world.
Think about it - what have the ways of the world really gotten you? Drinking, viewing pornography, drugs, over eating, gambling your life savings away..honestly, the quick hit that you get always ends and then you look for more. But when you come down the next time it's harder and you look for more. And the cycle continues. And you are always "looking".
Stop the madness. Stick to your convictions and say "enough is enough and it ends today!" If you are true to yourself, yes you will probably be scorned and rejected by those who you thought were your friends. But you will be doing something that is pleasing to God - and he will never forsake you like those "so called friends" would in a heart beat.
Ask the Lord today for the strength to make the difficult decisions that need to be made in order to save who you truly are.