@Braza
i think if you are strong willed as Litoro sounds,you can overcome the peer pressure even when you keep the company. there is this friend who was a heavy heavy drinker. he added quite a bit of weight. then he decided he needed to cut for health reasons (not that he became sick,he was just concerned he would be later at the rate he was adding). the guy to this day,can go out with his friends,buys them all the drinks they want and he would drink Dasani all night... and leaves the club with the rest at 3am sounding 'higher' than everyone else who was drinking... and all his 'drinking' fellas love his company even when he is sober! His friends will call him for a drink and they know he will drink water all through and no one ridicules him....
Some deals are like glass. Sometimes it's better to leave them broken than try to hurt yourself putting it back together.