Once you can come to the point of not caring what others think of you when you're having fun you realise you don't need the alcohol/drugs. For instance, go danc

Once you can come to the point of not caring what others think of you when you're having fun you realise you don't need the alcohol/drugs. For instance, go dance on the dancefloor with the knowledge that most others are too busy worrying about how they look and are envious that you're enjoying the moment. You don't need to completely remove alcohol, a good first step is to have 2 glasses/bottles over a binge session so you can feel more "socially integrated". I realise this is easier said than done but it's an attainable mindset.